1 Division of Gynaecological Oncology, Department of Gynaecology and Obstetrics, University Hospitals Leuven, Leuven Cancer Institute, European Union, Leuven, Belgium. Electronic address: Ignace.vergote@uzleuven.be.
2 Department of Pathology, Hospital U de Bellvitge and Hospital U Arnau de Vilanova, Universities of Lleida and Barcelona, Institut de Recerca Biomèdica de Lleida, Instituto de Investigación Biomédica de Bellvitge, Centro de Investigación Biomédica en Red de Cáncer, Barcelona, Spain.