A Ludwin1,2, W P Martins3,4, I Ludwin1,2. 1. Department of Gynecology and Oncology, Jagiellonian University, Krakow, Poland. 2. Ludwin & Ludwin Gynecology, Private Medical Center, Krakow, Poland. 3. Department of Obstetrics and Gynecology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil. 4. SEMEAR Fertilidade, Reproductive Medicine, Ribeirão Preto, Brazil.