TY - JOUR A1 - Magnus, P. A1 - Birke, C. A1 - Vejrup, K. A1 - Haugan, A. A1 - Alsaker, E. A1 - Daltveit, A.K. A1 - Stoltenberg, C. T1 - Cohort profile update: the Norwegian mother and child cohort study (MoBa Y1 - 2016 DO - 10.1093/ije/dyw029 VL - 45 IS - 2 ER -