1. Department of Obstetrics and Gynaecology University of Calgary Calgary Alberta Canada
2. Department of Community Health Sciences University of Calgary Calgary Alberta Canada
3. Department of Medicine University of Calgary Calgary Alberta Canada
4. Department of Health & Society University of Toronto Scarborough Toronto Ontario Canada
5. Department of Cancer Epidemiology and Prevention Research, Cancer Care Alberta, Alberta Health Services Calgary Alberta Canada
6. Department of Oncology University of Calgary Calgary Alberta Canada