Luis Chiva1, Philip Harter2, Felix Boria3, Pedro Ramirez4. 1. Department of Ob-Gyn, Clinica Universidad de Navarra, Madrid, Spain. lchiva@unav.es. 2. Department of Gynecology and Gynecologic Oncology, Kliniken Essen-Mitte, Essen, Germany. 3. Department of Ob-Gyn, Clinica Universidad de Navarra, Madrid, Spain. 4. Department of Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.