1. Children’s Hospital of Eastern Ontario (CHEO) Research Institute, Ottawa, ON, Canada
2. Better Outcomes Registry and Network (BORN) Ontario, Ottawa, ON, Canada
3. School of Epidemiology and Public Health, University of Ottawa, Ottawa, ON, Canada
4. School of Nursing, University of Ottawa, Ottawa, ON, Canada
5. Department of Paediatrics, Mount Sinai Hospital, Toronto, ON, Canada
6. Department of Paediatrics, University of Toronto, Toronto, ON, Canada
7. Maternal-infant Care Research Centre, Department of Paediatrics, Mount Sinai Hospital, Toronto, ON, Canada
8. Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON, Canada
9. Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
10. Department of Obstetrics and Gynaecology, University of Ottawa, Ottawa, ON, Canada
11. School of Nursing and Health Professions, University of San Francisco, San Francisco, CA, USA
12. Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA
13. Department of Medicine, University of Ottawa, Ottawa, ON, Canada
14. Bruyère Research Institute, Ottawa, ON, Canada
15. Public Health Ontario, Toronto, ON, Canada
16. Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
17. ICES, Toronto, ON, Canada
18. Department of Family and Community Medicine, University of Toronto, Toronto, ON, Canada
19. Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
20. Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, QC, Canada
21. Department of Obstetrics and Gynaecology, University of Toronto, Toronto, ON, Canada
22. Faculty of Nursing, University of Alberta, Edmonton, AB, Canada
23. School of Public Health, University of Alberta, Edmonton, AB, Canada
24. Department of Paediatrics, University of Calgary, Calgary, AB, Canada
25. Department of Obstetrics and Gynaecology, McMaster University, Hamilton, ON, Canada