1. Department of Laboratory Diagnostics, Poznań University of Medical Sciences, 60-569 Poznań, Poland
2. Department of Anaesthesiology and Intensive Care, Medical University of Lublin, 20-954 Lublin, Poland
3. Faculty of Psychology, University Hospital of Obstetrics and Gynaecology, 60-535 Poznań, Poland
4. Department of Psychology, University of Warsaw, 00-927 Warsaw, Poland
5. Independent Laboratory of Minimally Invasive Gynecology and Gynecological Endocrinology, Medical University of Lublin, 20-059 Lublin, Poland
6. UCL Medical School, London WC1E 6DE, UK
7. Department of Reproduction, Poznań University of Medical Sciences, 60-535 Poznań, Poland