1. Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
2. Department of Gynaecology and Obstetrics of the 1st Faculty of Medicine, Charles University and General Teaching Hospital, Apolinářská 18, 128 51 Prague 2, Czech Republic
3. Senior private researcher, 250 92 Šestajovice, Czech Republic
4. 3rd Department of Medicine, Department of Endocrinology and Metabolism of the 1st Faculty of Medicine, Charles University and General University Hospital in Prague, U nemocnice 1, 128 08 Prague 2, Czech Republic