1. Division of Gynaecologic Oncology, Department of Gynaecology and Obstetrics, The University of British Columbia, Vancouver, British Columbia, Canada
2. Vancouver General Hospital Research Pavilion, Vancouver, British Columbia, Canada
3. Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor
4. Pathology & Laboratory Medicine, The University of British Columbia, Vancouver, British Columbia, Canada