1. Department of Endocrinological Gynecology, Medical University of Silesia, Katowice, Poland,
2. Health Promotion and Obesity Management Unit, Department of Pathophysiology, Medical University of Silesia, Katowice, Poland,
3. Division of Statistics in Sosnowiec, Medical University of Silesia, Katowice, Poland,
4. Perinatology and Genecology Clinic Medical University of Silesia, Katowice, Poland, and
5. Pathophysiology Unit, Department of Pathophysiology, Medical University of Silesia, Katowice, Poland