1. Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, Western University, London, Canada
2. School of Social Work, Université de Montréal, Montreal, Canada
3. Paediatics and Children’s Health Research Institute, Lawson Health Research Institute, London, Canada
4. Eli Coleman Institute for Sexual and Gender Health, Department of Family Medicine and Community Health, University of Minnesota, Minneapolis, USA