1. Centre de recherche du Centre hospitalier universitaire de Sherbrooke, Sherbrooke, QC
2. Sainte Justine University Hospital Research Center, University of Montreal, Montreal, QC
3. School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, ON
4. Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, Huangpu