1. Department of Obstetrics and Gynaecology, McMaster University, Hamilton, Canada;
2. Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada;
3. Brantford General Hospital, Brantford, Canada;
4. Department of Pediatrics, McMaster University, Hamilton, Canada;
5. Maternal Fetal Medicine Division, Mount Sinai Hospital, Toronto, Canada;
6. Department of Obstetrics and Gynaecology, St. Joseph’s Healthcare, Hamilton, Canada;
7. Department of Family Medicine, McMaster University, Hamilton, Canada;
8. Burlington & Area Midwives, Burlington, Canada;
9. Community Midwives of Hamilton, Hamilton, Canada;
10. Biostatistics Unit/FSORC, St. Joseph’s Healthcare, Hamilton, Canada