1. Tartu University Hospital, Centre of Andrology, Tartu, Estonia;
2. Faculty of Medicine, University of Tartu, Tartu, Estonia;
3. Department of Microbiology, Faculty of Medicine, University of Tartu, Institute of Biomedicine and Translational Medicine, Tartu, Estonia;
4. Competence Centre on Health Technologies, Tartu, Estonia;
5. Department of Surgery, Faculty of Medicine, University of Tartu, Institute of Clinical Medicine, Tartu, Estonia