Authors
Georgi S. Georgiev
Department of Urology, Hill Clinic Medical Center, Medical University – Pleven, Department of Urology, Sofia, Bulgaria
Nikolay H. Kolev
University Hospital “Dr. Georgi Stranski” – Pleven, Medical University – Pleven, Department of Urology
Vladislav R. Dunev
St. Marina University Hospital, Pleven, Medical University – Pleven
Boyan S. Atanasov
St. Marina University Hospital, Pleven, Medical University – Pleven