1. DEPARTMENT OF GYNECOLOGY AND OBSTETRICS, SOLEC HOSPITAL, WARSAW, POLAND
2. DEPARTMENT OF GENERAL SURGERY WITH THE PROCTOLOGY UNIT, SOLEC HOSPITAL, WARSAW, POLAND
3. DEPARTMENT OF PATHOMORPHOLOGY, SOLEC HOSPITAL, WARSAW, POLAND
4. DEPARTMENT OF GYNECOLOGY AND OBSTETRICS, SOLEC HOSPITAL, WARSAW, POLAND; DEPARTMENT OF OBSTETRICS AND GYNECOLOGY DIDACTICS, FACULTY OF HEALTH SCIENCES, MEDICAL UNIVERSITY OF WARSAW, WARSAW, POLAND