1. Department of Reproductive Medicine, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
2. Department of Gynecology and Oncology, Jagiellonian University, Krakow, Poland
3. Ludwin and Ludwin Gynecology, Private Medical Center, Krakow, Poland
4. Centermed, Private Hospital and Clinic, Krakow, Poland
5. Department of Obstetrics and Gynecology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
6. Reproductive Medicine, SEMEAR fertilidade, Ribeirao Preto/SP, Brazil