[1] NHS Grampian, Dept Gynaecol Oncol, Aberdeen, Scotland
[2] Univ Aberdeen, Inst Appl Hlth Sci, Aberdeen, Scotland
[3] Univ Hertfordshire, Dept Phys Astron & Math, Hatfield, Herts, England
[4] Sechenov Univ, Inst Childs Hlth, Dept Pediat & Pediat Infect Dis, Moscow, Russia
[5] Univ Washington, Dept Gynecol Oncol, Seattle, WA 98195 USA
[6] Barts & London NHS Trust, Dept Gynaecol Oncol, London, England
[7] Univ Manchester, Fac Biol Med & Hlth, Sch Med Sci, Div Canc Sci, Manchester, Lancs, England
[8] Northwestern Univ, Dept Gynecol Oncol, Chicago, IL 60611 USA
[9] Karolinska Inst, Womens & Childrens Hlth, Stockholm, Sweden
[10] Swietokrzyskie Canc Ctr, Dept Gynecol Oncol, Kielce, Poland
[11] Heidelberg Univ, Dept Gynecol Oncol, Acad Teaching Hosp, Baden Baden, Germany
[12] Ankara City Hosp, Dept Gynecol Oncol, Ankara, Turkey
[13] Policlin Agostino Gemelli IRCCS, Dipartimento Salute Donna & Bambino & Salute Pubb, UOC Ginecol Oncol, Rome, Italy
[14] Gen Hosp Athens Alexandra, Dept Gynaecol Oncol, Athens, Greece
[15] Kardinal Schwarzenbergsches Krankenhaus, Dept Obstet Gynaecol, Schwarzach, Steiermark, Austria
[16] Univ Zielona Gora, Dept Gynecol & Obstet, Zielona Gora, Poland
[17] Queen Mary Univ London, Barts CRUK Canc Ctr, Wolfson Inst Prevent Med, London, England