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1.
COVID-19 vaccine coverage in health-care workers in England and effectiveness of BNT162b2 mRNA vaccine against infection (SIREN): a prospective, multicentre, cohort study.
Lancet
; 397(10286): 1725-1735, 2021 05 08.
Artículo
en Inglés
| MEDLINE | ID: mdl-33901423
2.
SARS-CoV-2 infection rates of antibody-positive compared with antibody-negative health-care workers in England: a large, multicentre, prospective cohort study (SIREN).
Lancet
; 397(10283): 1459-1469, 2021 04 17.
Artículo
en Inglés
| MEDLINE | ID: mdl-33844963
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