TY - GEN A1 - Spallek, Jacob A1 - Grosser, Angelique A1 - Höller-Holtrichter, Chantal A1 - Doyle, Ina-Merle A1 - Breckenkamp, Jürgen A1 - Razum, Oliver T1 - Early childhood health in Bielefeld, Germany (BaBi study) : study protocol of a social-epidemiological birth cohort T2 - British Medical Journal Open Y1 - 2017 UR - https://opus4.kobv.de/opus4-UBICO/frontdoor/index/index/docId/20240 SN - 2044-6055 VL - 7 IS - 8 ER -