1 Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Laarbeeklaan, Brussels 101-1090, Belgium. Electronic address: [email protected].
2 Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Laarbeeklaan, Brussels 101-1090, Belgium; Department of General Surgery and Medical Surgical Specialties, University of Catania, Via Santa Sofia 78, Catania 95125, Italy.
3 Department of Obstetrics, Gynecology and Reproductive Medicine, Dexeus University Hospital, Barcelona 08028, Spain.