1.
2.
Int J Epidemiol
; 48(4): 1042-1043h, 2019 08 01.
Article
En
| MEDLINE
| ID: mdl-30815674
Asthma/epidemiology , Hypersensitivity/epidemiology , Immune System/growth & development , Infections/epidemiology , Microbiota/immunology , Adolescent , Animals , Child , Child, Preschool , Epidemiologic Methods , Family Characteristics , Female , Follow-Up Studies , Germany , Humans , Infant , Infant, Newborn , Male , Nutritional Status , Pets , Respiratory Tract Infections/epidemiology , Risk Factors , Socioeconomic Factors