1. Centre for Occupational Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary
2. Institute for Health Insurance, Faculty of Health Sciences, University of Pécs, 7621 Pécs, Hungary
3. National Laboratory on Human Reproduction, University of Pécs, 7624 Pécs, Hungary
4. Department of Primary Health Care, University of Pécs, 7623 Pécs, Hungary
5. 1st Department of Internal Medicine, Medical School, Clinical Center, University of Pécs, 7624 Pécs, Hungary