1. Department of Paediatrics, Hospital for Sick Children, University of Toronto, Toronto, Canada
2. Department of Paediatrics, Children’s Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario, Canada
3. Department of Paediatrics, British Columbia Women’s Hospital and Health Centre, University of British Columbia, Vancouver, British Columbia, Canada
4. Department of Paediatrics, Centre hospitalier universitaire Sainte-Justine, Université de Montréal, Canada
5. Department of Paediatrics, Montreal Children’s Hospital, McGill University, Montreal, Quebec, Canada
6. Department of Paediatrics, Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada
7. Department of Paediatrics, Stollery Children’s Hospital, University of Alberta, Edmonton, Alberta, Canada
8. Department of Obstetrics and Gynecology, St Michael’s Hospital, University of Toronto, Toronto, Ontario, Canada
9. Department of Obstetrics and Gynecology, Women’s Health Research Institute, British Columbia Women’s Hospital and Health Centre, University of British Columbia, Vancouver, British Columbia, Canada