[1] Univ Med Ctr Hamburg Eppendorf, Dept Gynecol, Hamburg, Germany
[2] Semmelweis Univ, Ctr Canc, Div Oncol, Budapest, Hungary
[3] F Hoffmann La Roche Ltd, Pharma Dev Med Affairs, Basel, Switzerland
[4] F Hoffmann La Roche Ltd, Pharma Dev Med Affairs Biometr, Basel, Switzerland
[5] Univ Heidelberg Hosp, Natl Ctr Tumor Dis, Div Gynecol Oncol, Heidelberg, Germany