[1] Univ Toronto, Dept Med, Toronto, ON, Canada
[2] Univ Toronto, Dept Obstet & Gynecol, Toronto, ON, Canada
[3] Univ Toronto, Dept Hlth Policy Management & Evaluat, Toronto, ON, Canada
[4] Univ Western Ontario, Dept Family Med, London, ON, Canada
[5] St Michaels Hosp, Cardiac Prevent Ctr & Womens Cardiovasc Hlth, Toronto, ON M5B 1W8, Canada
[6] Univ Hlth Network, Osteoporosis Program, Toronto, ON, Canada
[7] Univ Hlth Network, Womens Hlth Program, Toronto, ON, Canada
[8] Univ Toronto, Fac Med, Toronto, ON, Canada