1. Department of Pharmacology; Kochi Medical School, Kochi University; Nankoku Japan
2. Division of Urology; Tottori University School of Medicine; Yonago Japan
3. Department of Urology; Kochi Medical School; Kochi University; Nankoku Japan
4. B' Urologic Department; Papageorgiou General Hospital; School of Medicine; Aristotle University; Thessaloniki Greece