1 Department of Obstetrics and Gynaecology (Dason), Sinai Health System; Division of Endocrinology (Koshkina), Department of Medicine, Women's College Hospital, and Department of Obstetrics and Gynaecology (Chan, Sobel), University of Toronto, Toronto, Ont. shirin.dason@mail.utoronto.ca.
2 Department of Obstetrics and Gynaecology (Dason), Sinai Health System; Division of Endocrinology (Koshkina), Department of Medicine, Women's College Hospital, and Department of Obstetrics and Gynaecology (Chan, Sobel), University of Toronto, Toronto, Ont.