1. Department of Surgery, University of Alberta, Edmonton, AB T6G 2B7, Canada
2. Department of Obstetrics and Gynecology, University of Alberta, Edmonton, AB T6G 2B7, Canada
3. Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA 02115, USA
4. John W. Scott Health Sciences Library, University of Alberta, Edmonton, AB T6G 2B7, Canada
5. Department of Gynecologic Oncology, Cross Cancer Institute, Edmonton, AB T6G 1Z2, Canada