1. Department of Obstetrics and Gynecology University of Pavol Jozef Safarik in Kosice, Hospital AGEL Košice‐Šaca, Inc. Košice‐Šaca 04015 Slovak Republic
2. Center of Clinical and Preclinical Research MEDIPARK Faculty of Medicine, University of Pavol Jozef Safarik in Kosice Košice 04001 Slovak Republic
3. Department of Gynecology and Obstetrics Charles University, Prague, First Faculty of Medicine and General Teaching Hospital Prague Czech Republic