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1.
Matern Child Nutr ; : e13712, 2024 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-39171658

RESUMO

Mali national policy recommends that women take iron and folic acid supplements (IFA) from the time of the first antenatal care (ANC) visit, throughout pregnancy and during the first 3 months after delivery. In 2020, the World Health Organization (WHO) updated their ANC guidelines to recommend the United Nations International Multiple Micronutrient Antenatal Preparation (UNIMMAP) formulation of multiple micronutrient supplements (MMS) in the context of rigorous research, including implementation research. In Bamako, Mali, a codesign process was used to tailor antenatal care MMS packaging and counselling materials aimed at optimizing delivery and uptake of and adherence to MMS. This paper presents the codesign process along with the results of a post-intervention qualitative assessment to evaluate the behaviour change intervention. At the conclusion of the intervention, we conducted semistructured qualitative interviews with 24 women who had received the intervention and six pharmacy managers from the six health centres participating in the study. We conducted two focus groups with midwives who had delivered the intervention and two group discussions with family members of women who had received the intervention. Respondent perspectives reveal an easy experience transitioning from previously used IFA. Women and providers concur that the intervention counselling materials and visual aids were instrumental in influencing the perceived benefit and uptake of MMS. Family members play an influential role in pregnant women's decision-making regarding MMS uptake. MMS and the associated implementation strategies developed through the codesign process were found to be a highly acceptable intervention.

2.
Lancet HIV ; 9(3): e214-e222, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35090604

RESUMO

Pregnant and breastfeeding populations are at substantial risk of acquiring HIV in some settings, yet are underrepresented in clinical trials of new pre-exposure prophylaxis (PrEP) agents. Several PrEP formulations are in development (eg, vaginal rings, long-acting injectables, and other modalities). Pregnant and breastfeeding populations are typically excluded from initial clinical trials. We identified 14 PrEP trials of novel agents in non-pregnant or non-breastfeeding populations, and six phase 1-3 trials and open label extensions among pregnant and breastfeeding populations, that are currently ongoing or complete. A framework shift is needed to consider the ethical costs of excluding pregnant and breastfeeding populations at risk for HIV in PrEP clinical trials and promote inclusion to maximise the benefits from PrEP tools in the pipeline. Research on new PrEP agents should include pregnant and breastfeeding populations to avoid delays in reaching those who could benefit from PrEP after efficacy is established.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Profilaxia Pré-Exposição , Fármacos Anti-HIV/uso terapêutico , Aleitamento Materno , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Humanos , Gravidez , Tenofovir/uso terapêutico
3.
Artigo em Inglês | MEDLINE | ID: mdl-35669097

RESUMO

Introduction: Whether intramuscular depot medroxyprogesterone acetate (DMPA-IM) and norethisterone enanthate (NET-EN) have a differential impact on the incidence of sexually transmitted infection (STI) remains unclear. In the Vaginal and Oral Interventions to Control the Epidemic (VOICE) trial, HIV-1 acquisition was higher for DMPA-IM users vs. NET-EN users. We compared DMPA-IM and NET-EN users with regard to chlamydia, gonorrhea, trichomoniasis, syphilis, and herpes simplex virus type 2 (HSV-2) infection. Materials and Methods: Prospective data were analyzed from VOICE, a randomized trial of HIV-1 chemoprophylaxis. Participants were evaluated annually and as indicated for chlamydia, gonorrhea, trichomoniasis, and syphilis. Stored specimens were tested for HSV-2. Proportional hazards models compared the risk of STI between DMPA-IM and NET-EN users. Results: Among 2,911 injectable contraception users in South Africa, 1,800 (61.8%) used DMPA-IM and 1,111 used NET-EN (38.2%). DMPA-IM and NET-EN users did not differ in baseline chlamydia: 15.1 vs. 14.3%, p= 0.54; gonorrhea: 3.4 vs. 3.7%, p= 0.70; trichomoniasis: 5.7 vs.5.0%, p= 0.40; or syphilis: 1.5 vs. 0.7%, p= 0.08; but differed for baseline HSV-2: (51.3 vs. 38.6%, p < 0.001). Four hundred forty-eight incident chlamydia, 103 gonorrhea, 150 trichomonas, 17 syphilis, and 48 HSV-2 infections were detected over 2,742, 2,742, 2,783, 2,945, and 756 person-years (py), respectively (chlamydia 16.3/100 py; gonorrhea 3.8/100 py; trichomoniasis 5.4/100 py; syphilis 0.6/100 py; HSV-2 6.4/100 py). Comparing DMPA-IM with NET-EN users, no difference was noted in the incidence of chlamydia, gonorrhea, trichomoniasis, syphilis, or HSV2 infections, including when adjusted for confounders [chlamydia (aHR 1.03, 95% CI 0.85-1.25), gonorrhea (aHR 0.88, 95% CI 0.60-1.31), trichomoniasis (aHR 1.07, 95% CI 0.74-1.54), syphilis (aHR 0.41, 95% CI 0.15-1.10), and HSV-2 (aHR 0.83, 95% CI 0.45-1.54, p= 0.56)]. Discussion: Among South African participants enrolled in VOICE, DMPA-IM and NETEN users differed in prevalence of HSV-2 at baseline but did not differ in the incidence of chlamydia, gonorrhea, trichomoniasis, syphilis, or HSV-2 infection. Differential HIV-1 acquisition, previously demonstrated in this cohort, does not appear to be explained by differential STI acquisition. However, the high incidence of multiple STIs reinforces the need to accelerate access to comprehensive sexual and reproductive health services.

4.
Gates Open Res ; 5: 99, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-39049963

RESUMO

Background: Given that pregnant women are now included among those for receipt coronavirus disease 2019 (COVID-19) vaccines, it is important to ensure that information systems can be used (or available) for active safety surveillance, especially in low- and middle-income countries (LMICs). The aim of this study was to build consensus about the use of existing maternal and neonatal data collection systems in LMICs for COVID-19 vaccines active safety surveillance, a basic set of variables, and the suitability and feasibility of including pregnant women and LMIC research networks in COVID-19 vaccines pre-licensure activities. Methods: A three-stage modified Delphi study was conducted over three months in 2020. An international multidisciplinary panel of 16 experts participated. Ratings distributions and consensus were assessed, and ratings' rationale was analyzed. Results: The panel recommended using maternal and neonatal data collection systems for active safety surveillance in LMICs (median 9; disagreement index [DI] -0.92), but there was no consensus (median 6; DI 1.79) on the feasibility of adapting these systems. A basic set of 14 maternal, neonatal, and vaccination-related variables. Out of 16 experts, 11 supported a basic set of 14 maternal, neonatal, and vaccination-related variables for active safety surveillance. Seven experts agreed on a broader set of 26 variables. The inclusion of pregnant women for COVID-19 vaccines research (median 8; DI -0.61) was found appropriate, although there was uncertainty on its feasibility in terms of decision-makers' acceptability (median 7; DI 10.00) and regulatory requirements (median 6; DI 0.51). There was no consensus (median 6; DI 2.35) on the feasibility of including research networks in LMICs for conducting clinical trials amongst pregnant women. Conclusions: Although there was some uncertainty regarding feasibility, experts recommended using maternal and neonatal data collection systems and agreed on a common set of variables for COVID-19 vaccines active safety surveillance in LMICs.

5.
PLoS One ; 14(10): e0222177, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31577797

RESUMO

BACKGROUND: Low quality and frequency of antenatal care (ANC) are associated with lower uptake of facility-based deliveries-a key intervention to reduce maternal and neonatal mortality. We implemented group ANC (G-ANC), an alternative service delivery model, in Kenya and Nigeria, to assess its impact on quality and attendance at ANC and uptake of facility-based delivery. METHODS: From October 2016‒January 2018, we conducted a facility-based, pragmatic, cluster-randomized controlled trial with 20 clusters per country. We recruited women <24 weeks gestation during their first ANC visit and enrolled women at intervention facilities who agreed to attend G-ANC in lieu of routine individual ANC. The G-ANC model consisted of five monthly 2-hour meetings with clinical assessments alongside structured gestationally specific group discussions and activities. Quality of care was defined as receipt of eight specific ANC interventions. Data were obtained through facility records and self-report during a home-based postpartum survey. Analysis was by intention to treat. FINDINGS: All women who completed follow up are included in the analysis (Nigeria: 1018/1075 enrolled women [94.7%], Kenya: 826/1013 [81.5%]). In Nigeria women in the intervention arm were more likely to have a facility-based delivery compared to those in the control arm (Nigeria: 76.7% [391/510] versus 54.1% [275/508]; aOR 2.30, CI 1.51-3.49). In both countries women in the intervention arm were more likely than those in the control arm to receive quality ANC (Nigeria: aOR 5.8, CI 1.98-17.21, p<0.001; Kenya: aOR 5.08, CI 2.31-11.16, p<0.001) and to attend at least four ANC visits (Nigeria: aOR 13.30, CI 7.69-22.99, p<0.001; Kenya: aOR 7.12, CI 3.91-12.97, p<0.001). CONCLUSIONS: G-ANC was associated with higher facility-based delivery rates in Nigeria, where those rates associated with individual ANC were low. In both Kenya and Nigeria it was associated with a higher proportion of women receiving quality ANC and higher frequency of ANC visits.


Assuntos
Parto Obstétrico , Instalações de Saúde/normas , Cuidado Pré-Natal/normas , Qualidade da Assistência à Saúde/normas , Adolescente , Adulto , Feminino , Humanos , Quênia , Nigéria , Cuidado Pós-Natal , Gravidez , Adulto Jovem
6.
Artigo em Inglês | MEDLINE | ID: mdl-30602513

RESUMO

Breastfeeding (BF) women are an important population for biomedical HIV prevention strategies, but they are rarely included in trials. The 25-mg dapivirine vaginal ring (VR) reduced women's risk of sexually transmitted HIV infection in two phase 3 trials conducted in Africa. We conducted a phase 1, open-label study (MTN-029/IPM 039) of dapivirine VR use among lactating women in Pittsburgh, PA, and Birmingham, AL, USA. MTN-029/IPM 039 enrolled 16 healthy adult women who had already weaned their infants but were still able to express breast milk. Women were instructed to use the VR continuously for 14 days and provided milk, plasma, and cervicovaginal fluid (CVF) samples for pharmacological analysis. No infants were exposed to the drug, but infant dosage was estimated according to FDA guidance. Adverse events (AEs) were collected at all contacts. The study was completed with 100% participant retention. Median dapivirine concentrations were 676 pg/ml in breast milk, 327 pg/ml in plasma (milk/plasma ratio ∼2.0), and 36.25 ng/mg in CVF. Six participants experienced 10 total AEs, none of which required VR discontinuation. The estimated mean daily infant dosage was 74.3 ng/kg/day. In this first study of dapivirine exposure during lactation, dapivirine VR use was associated with lower concentrations of detectable dapivirine in milk and plasma than in CVF samples and a favorable safety profile. Estimated daily levels of infant dapivirine exposure were also low. Additional studies are needed to evaluate longer periods of dapivirine VR use among BF mother-infant pairs living in regions with higher incidence of sexually transmitted HIV infection. (This study has been registered at ClinicalTrials.gov under registration no. NCT02808949.).


Assuntos
Fármacos Anti-HIV/farmacocinética , Infecções por HIV/prevenção & controle , Leite Humano/química , Pirimidinas/farmacocinética , Administração Intravaginal , Adulto , Fármacos Anti-HIV/sangue , Feminino , Humanos , Lactação/metabolismo , Pirimidinas/sangue , Adulto Jovem
7.
J Acquir Immune Defic Syndr ; 79(5): 566-572, 2018 12 15.
Artigo em Inglês | MEDLINE | ID: mdl-30383589

RESUMO

BACKGROUND: Monthly use of the dapivirine vaginal ring has been shown to be safe and effective for HIV-1 prevention in nonpregnant reproductive-aged women. The impact of dapivirine on pregnancy outcomes and infant is not known. We compared pregnancy incidence and outcomes by study arm among HIV-1-uninfected women who became pregnant while participating in MTN-020/ASPIRE. METHODS: ASPIRE was a randomized, double-blind, placebo-controlled phase III safety and effectiveness study of the dapivirine ring for HIV-1 prevention. Sexually active women aged 18-45 years from Malawi, South Africa, Uganda, and Zimbabwe were enrolled. Urine pregnancy tests were performed monthly, and, if positive, study product was withheld during pregnancy and breastfeeding. Pregnancy-related outcomes included the following: pregnancy incidence, pregnancy outcomes (live birth, preterm birth, pregnancy loss, and congenital anomalies), and infant growth. RESULTS: Of 2629 women enrolled in ASPIRE, 169 became pregnant during follow-up, resulting in 179 incident pregnancies and 181 pregnancy outcomes. No difference in pregnancy incidence by study arm was observed (hazard ratio = 0.93; 95% confidence interval: 0.68 to 1.26). The distribution of pregnancy outcomes was similar by study arm, and no difference was noted in the frequency or pattern of congenital anomalies or infant growth parameters by study arm. CONCLUSIONS: Dapivirine use in the periconception period does not seem to be associated with adverse effects on pregnancy or infant outcomes. Our findings provide support for additional safety studies of the dapivirine ring throughout pregnancy.


Assuntos
Fármacos Anti-HIV/administração & dosagem , Dispositivos Anticoncepcionais Femininos , Infecções por HIV/prevenção & controle , Resultado da Gravidez , Pirimidinas/administração & dosagem , Adolescente , Adulto , África Subsaariana , Desenvolvimento Infantil , Método Duplo-Cego , Feminino , Humanos , Recém-Nascido , Pessoa de Meia-Idade , Placebos/administração & dosagem , Gravidez , Adulto Jovem
8.
AIDS Behav ; 22(2): 402-411, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-28550377

RESUMO

The MTN-008 trial was the first multi-dose study conducted to evaluate the safety of a microbicide gel (2:1 randomized to tenofovir 1% or hydroxycellulose (HEC) placebo gel) during pregnancy. The study aim was to evaluate safety, tolerability and pharmacokinetics of the study products. Procedures included daily gel administration, with Day 0 and Day 6 in clinic, and Days 1-5 at home. Because pregnancy may pose unique challenges to consistent gel use and acceptability, evaluation of adherence and acceptability was a secondary objective of the trial. The study enrolled healthy, HIV-negative, pregnant women aged 18-40 in Pittsburgh, PA and Birmingham, AL, USA in 2 consecutive groups: cohort 1 was 37-39 weeks gestation, cohort 2 was 34-36 weeks. Ninety-one women completed the study (45 and 46 in each cohort, respectively) and were evaluable per protocol. Adherence was evaluated using self-reports: participants completed a web-based computer-assisted self-interview (CASI) at Days 0 and 6 about gel attitudes and behaviors. At Day 6 trained research staff conducted a short interviewer-administered questionnaire with both structured and open-ended questions. Frequencies of quantitative data were tabulated in SAS and descriptive statistics are presented; open-ended textual data were summarized by a behavioral scientist experienced in qualitative analysis. Participants reported generally neutral perceptions of gel characteristics. A small number of women (7-8%) reported pain (6/90), other physical discomfort (7/90), or mental discomfort (7/90) associated with the process of applicator insertion. About 5% reported the same for the gel itself. Two-thirds (61/90) thought the gel was runny, many complained of bothersome gel leakage and several cited this reason for not inserting a full dose. The majority were not worried the gel would cause problems for their pregnancy or babies. Ninety-seven percent (83/86) said they would use the gel in the future if they were pregnant, and 90% (81/90) when nonpregnant. Self-reported adherence was high with 88% (79/90) reporting daily gel use on both the computerized and interviewer-administered questionnaires. The majority (67/90) reported no difficulty with daily use. However, drug was undetectable (<0.31 ng/mL) among 45% (27/60; 95% CI 32-58%) of the women on active product prior to observed dosing at Day 6. The most common reason for reported nonuse (N = 6) was forgetting. Study gel was generally acceptable, but many complained of a runny consistency (61/90) and leakage (83/90). No frequent or strong concerns about the effects of the study gel on the pregnancy/fetus were reported. Self-reported adherence to study gel self-administered at home for 5 days was high, however plasma drug levels suggest actual use may have been considerably lower. Findings from this study can provide insights relevant to use of other antiretroviral-based, vaginally-inserted HIV prevention methods during pregnancy.


Assuntos
Anti-Infecciosos/administração & dosagem , Antirretrovirais/administração & dosagem , Infecções por HIV/prevenção & controle , Adesão à Medicação , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Gestantes/psicologia , Tenofovir/administração & dosagem , Administração Intravaginal , Adolescente , Adulto , Alabama , Estudos de Coortes , Feminino , Humanos , Philadelphia , Gravidez , Resultado do Tratamento , Estados Unidos , Cremes, Espumas e Géis Vaginais , Adulto Jovem
9.
Birth Defects Res ; 109(5): 387-390, 2017 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-28398676

RESUMO

BACKGROUND: Emergence of Zika virus as a pathogen with important implications for perinatal outcomes highlights the need to identify safe and effective strategies for prevention and treatment of maternal infections. METHODS: While substantial progress has been made in this area in recent years, significant regulatory and health systems barriers must still be overcome to identify and deliver evidence-based drug therapies for pregnant women. RESULTS: We review progress and outstanding challenges associated with the identification and implementation of new treatment options for maternal infections. CONCLUSION: We describe several strategies in use to optimize the application of existing evidence.Birth Defects Research 109:387-390, 2017.© 2017 Wiley Periodicals, Inc.


Assuntos
Controle de Doenças Transmissíveis/métodos , Complicações Infecciosas na Gravidez/etiologia , Complicações Infecciosas na Gravidez/terapia , Adulto , Pré-Escolar , Controle de Doenças Transmissíveis/tendências , Doenças Transmissíveis/terapia , Feminino , Humanos , Lactente , Recém-Nascido , Malária/prevenção & controle , Mosquitos Vetores , Gravidez , Resultado da Gravidez/epidemiologia , Resultado do Tratamento , Zika virus/patogenicidade
10.
J Int AIDS Soc ; 19(1): 20990, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27658440

RESUMO

INTRODUCTION: Vaginal tenofovir (TFV) 1% gel may reduce incident HIV-1 and herpes simplex virus 2 infection. Pregnancy may increase risk of HIV acquisition, and incident HIV in pregnancy potentiates perinatal HIV transmission. Our objective was to investigate the safety and pharmacokinetics of seven days of TFV 1% vaginal gel in term and near-term pregnancy. METHODS: Ninety-eight healthy pregnant women, stratified to a term cohort followed by a near-term cohort, were enrolled into a 2:1 randomized, double-blinded, placebo-controlled trial. Women received TFV or placebo gel for seven consecutive days with pharmacokinetic sampling on days 0 and 6. Maternal and cord blood were collected at delivery. Primary end points included laboratory and genital adverse events, adverse pregnancy and neonatal outcomes, and maternal TFV levels. RESULTS: Most adverse events were grade 1 and none of the grade 3 or 4 adverse events were related to study product. There was no significant difference in safety end points between the two pregnancy cohorts (p=0.18); therefore, their data were combined. Primary safety end point rates were similar for mothers randomized to the TFV gel vs placebo arm (72.7 and 68.8%, p=0.81). The same was true for newborns in the TFV gel vs placebo arms (4.5% vs 6.3%, p=0.66). All women randomized to TFV had quantifiable serum levels within eight hours of dosing, with low overall median (interquartile range) day 0 and day 6 peak values (3.8 (2.0 to 7.0) and 5.8 (2.6 to 9.4) ng/mL, respectively). CONCLUSIONS: Daily TFV 1% vaginal gel use in term and near-term pregnancy appears to be safe and produces low serum drug levels.

11.
Antimicrob Agents Chemother ; 60(9): 5616-9, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27401570

RESUMO

Lactation studies are necessary evaluations of medications for reproductive-age women. We evaluated pharmacokinetics (PK), pharmacodynamics, safety, and adherence profiles associated with 7 days of 1% tenofovir (TFV) vaginal gel use during lactation. Tenofovir levels (maternal/infant serum, milk) and anti-HIV activity (milk), adverse events (AEs), and adherence were measured for 17 HIV-1-seronegative breast-feeding mother-infant pairs. Tenofovir use was well-tolerated and detected at low levels in maternal serum, milk, and infant serum but demonstrated no anti-HIV activity in milk.


Assuntos
Fármacos Anti-HIV/sangue , Leite Humano/metabolismo , Tenofovir/sangue , Tenofovir/farmacocinética , Adulto , Aleitamento Materno , Feminino , Infecções por HIV/sangue , Infecções por HIV/tratamento farmacológico , Infecções por HIV/metabolismo , HIV-1/efeitos dos fármacos , Humanos , Lactente , Lactação/metabolismo , Mães , Tenofovir/uso terapêutico , Cremes, Espumas e Géis Vaginais/farmacocinética , Cremes, Espumas e Géis Vaginais/uso terapêutico , Adulto Jovem
13.
Lancet HIV ; 2(7): e279-87, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26155597

RESUMO

BACKGROUND: Several observational studies have reported that HIV-1 acquisition seems to be higher in women who use depot medroxyprogesterone acetate (DMPA) than in those who do not use hormonal contraception. We aimed to assess whether two injectable progestin-only contraceptives, DMPA and norethisterone enanthate (NET-EN), confer different risks of HIV-1 acquisition. METHODS: We included data from South African women who used injectable contraception while participating in theVOICE study, a multisite, randomised, placebo-controlled trial that investigated the safety and efficacy of three formulations of tenofovir for prevention of HIV-1 infection in women between Sept 9, 2009, and Aug 13, 2012. Women were assessed monthly for contraceptive use and incident infection. We estimated the difference in incident HIV-1infection between DMPA and NET-EN users by Cox proportional hazards regression analyses in this prospective cohort. The VOICE trial is registered with ClinicalTrials.gov, NCT00705679. FINDINGS: 3141 South African women using injectable contraception were included in the present analysis: 1788 (56·9%)solely used DMPA, 1097 (34·9%) solely used NET-EN, and 256 (8·2%) used both injectable types at different times during follow-up. During 2733·7 person-years of follow-up, 207 incident HIV-1 infections occurred (incidence7·57 per 100 person-years, 95% CI 6·61­8·68). Risk of HIV-1 acquisition was higher among DMPA users (incidence 8·62 per 100 person-years, 95% CI 7·35­10·11) than among NET-EN users (5·67 per 100 person-years, 4·35­7·38;hazard ratio 1·53, 95% CI 1·12­2·08; p=0·007). This association persisted when adjusted for potential confoundingvariables (adjusted hazard ratio [aHR] 1·41, 95% CI 1·06­1·89; p=0·02). Among women seropositive for herpes simplex virus type 2 (HSV-2) at enrolment, the aHR was 2·02 (95% CI 1·26­3·24) compared with 1·09 (0·78­1·52)for HSV-2-seronegative women (pinteraction=0·07). INTERPRETATION: Although moderate associations in observational analyses should be interpreted with caution, thesefi ndings suggest that NET-EN might be an alternative injectable drug with a lower HIV risk than DMPA in high HIV-1 incidence settings where NET-EN is available. FUNDING: National Institutes of Health, Mary Meyer Scholars Fund, and the Ruth Freeman Memorial Fund.


Assuntos
Comportamento Contraceptivo/estatística & dados numéricos , Anticoncepcionais Femininos , Infecções por HIV/epidemiologia , Infecções por HIV/etiologia , HIV-1/efeitos dos fármacos , Acetato de Medroxiprogesterona , Noretindrona/análogos & derivados , Adulto , Estudos de Coortes , Anticoncepcionais Femininos/administração & dosagem , Anticoncepcionais Femininos/efeitos adversos , Feminino , Seguimentos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Infecções por HIV/virologia , Humanos , Incidência , Acetato de Medroxiprogesterona/administração & dosagem , Acetato de Medroxiprogesterona/efeitos adversos , Noretindrona/administração & dosagem , Noretindrona/efeitos adversos , Modelos de Riscos Proporcionais , Fatores de Risco , África do Sul/epidemiologia , Tenofovir/uso terapêutico , Adulto Jovem
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