1. Department of Gynecology and OncologyJagiellonian University Krakow Poland
2. Ludwin & Ludwin GynecologyPrivate Medical Center Krakow Poland
3. Department of Obstetrics and GynecologyRibeirão Preto Medical School, University of São Paulo Ribeirão Preto Brazil
4. SEMEAR Fertilidade, Reproductive Medicine Ribeirão Preto Brazil
5. Department of Obstetrics and Gynecology, School of Medicine and DentistryUniversity of Rochester Medical Center Rochester NY USA
6. Department of Obstetrics and GynecologyWright State University, Boonshoft School of Medicine Dayton OH USA
7. Shanghai Jiaotong University School of MedicineShanghai People's Republic of China