1. Centre for Menstrual Cycle and Ovulation Research, Endocrinology, University of British Columbia, University Endowment Lands, Canada
2. Division of Endocrinology, Department of Medicine, University of British Columbia, University Endowment Lands, Canada
3. Women’s Health Research Institute, University of British Columbia, University Endowment Lands, Canada
4. School of Population and Public Health, University of British Columbia, University Endowment Lands, Canada