1. Department of Medical Genetics, Medical University‑Sofia, 1431 Sofia, Bulgaria
2. Department of Urology, UMBALSM N.I. Pirogov, 1606 Sofia, Bulgaria
3. Department of Urology, Tsaritsa Yoanna University Hospital, 1527 Sofia, Bulgaria
4. Department of Medical Genetics, Medical University‑Sofia,1431 Sofia, Bulgaria
5. Medical Genetics Laboratory, GARH Malinov, 1680 Sofia, Bulgaria