[1] McGill Univ, Gynecol Canc Serv, Hlth Ctr, Canc Care Mission, 1001 Decarie Blvd, Montreal, PQ H4A 3J1, Canada
[2] McGill Univ, Dept Obstet & Gynecol, 1001 Decarie Blvd, Montreal, PQ H4A 3J1, Canada
[3] McGill Univ, Dept Oncol, 5100 Maisonneuve Blvd West, Montreal, PQ H4A 3T2, Canada
[4] McGill Univ, Res Inst, Hlth Ctr, 1001 Decarie Blvd, Montreal, PQ H4A 3J1, Canada
[5] McGill Univ, Support & Palliat Care Serv, Hlth Ctr, Canc Care Mission, 1001 Decarie Blvd, Montreal, PQ H4A 3J1, Canada
[6] Univ Ottawa, Dept Epidemiol & Community Med, 600 Peter Morand Crescent, Ottawa, ON K1G 5Z3, Canada
[7] JSS Med Res, 9400 Henri Bourassa West, Montreal, PQ H4S 1N8, Canada
[8] McGill Univ, Dept Epidemiol Biostat & Occupat Hlth, 1020 Pine Ave West, Montreal, PQ H3A 1A2, Canada
[9] McGill Univ, Fac Med, Dept Surg, Div Surg Res, 1650 Cedar Ave, Montreal, PQ H3G 1A4, Canada