1 Clinical Department of Perinatology and Oncological Gynaecology, Medical University of Silesia, Sosnowiec, Poland. brystomasz@wp.pl.
2 Department of Endocrinology and Neuroendocrine Tumours, Department of Pathophysiology and Endocrinology, Medical University of Silesia, Katowice, Poland.
3 Clinical Department of Perinatology and Oncological Gynaecology, Medical University of Silesia, Sosnowiec, Poland.