1 Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore, Singapore.
2 Department of Biostatistics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
3 Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
4 Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, National University Health System, Singapore, Singapore.
5 Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
6 Allergy Service, Department of Paediatrics, KK Women's and Children's Hospital, Singapore, Singapore.
7 Department of Obstetrics & Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore, Singapore.
8 Folkhälsan Research Center, Helsinki, Finland.
9 Department of General Practice and Primary Health Care, University of Helsinki, Helsinki, Finland.
10 Department of Maternal Fetal Medicine, KK Women's and Children's Hospital (KKH), Singapore, Singapore.
11 Duke-NUS Medical School, Singapore, Singapore.
12 Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.
13 Endocrinology Service, Department of Paediatrics, KK Women's and Children's Hospital, Singapore, Singapore.
14 School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK.
15 NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, UK.
16 MRC Lifecourse Epidemiology Unit, Faculty of Medicine, University of Southampton, Southampton, UK.
17 Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore.