Affiliations

• ¹ BC Women's Centre for Pelvic Pain and Endometriosis, Vancouver, BC; Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC; Women's Health Research Institute, Vancouver, BC. Electronic address: paul.yong@vch.ca.
• ² BC Women's Centre for Pelvic Pain and Endometriosis, Vancouver, BC; Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC.
• ³ BC Women's Centre for Pelvic Pain and Endometriosis, Vancouver, BC; Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC; Department of Family Medicine, University of Calgary, Calgary, AB.
• ⁴ Faculty of Kinesiology, University of Calgary, Calgary, AB; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB.
• ⁵ Women's Health Research Institute, Vancouver, BC; Centre for Menstrual Cycle and Ovulation Research, University of British Columbia, Vancouver, BC; Division of Endocrinology and Metabolism, Department of Medicine, University of British Columbia, Vancouver, BC; School of Population and Public Health, University of British Columbia, Vancouver, BC.