1. Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
2. Barcelona Institute for Global Health (ISGlobal), Barcelona Biomedical Research Park (PRBB), Barcelona, Spain
3. CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
4. Universitat Pompeu Fabra (UPF), Barcelona, Spain
5. The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong SAR, People’s Republic of China
6. Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, People’s Republic of China
7. Section of Allergy & Immunology, Department of Pediatrics & Child Health, University of Manitoba and Children’s Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
8. Department of Pediatrics, BC Children’s Hospital, The University of British Columbia, Vancouver, British Columbia, Canada
9. Department of Pediatrics and Physiology, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
10. Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
11. Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada