Dr. med. Mirko Phädayanon

Specialist in urological inpatient practice, Olten, Switzerland, Dr med. C. Kraft

Specialist in urology, Cologne

Specialist in urological inpatient practice at Asanaspital, Leuggern, Switzerland, Dr J. Springer, MD

Specialist in urological inpatient practice, Lindenberg im Allgäu, Germany, Prof. Dr E. Hauck and Dr C. Riedl

Assistant doctor/specialist in urology, Cologne-Holweide teaching hospital, PD Dr med. J. Leissner

Resident, General and Trauma Surgery, Teaching Hospital Cologne-Holweide, Prof. Dr med. H.-F. Kienzle

Doctorate, clinical doctoral thesis, Department of Urology, Justus-Liebing-University, Giessen: Validation and application of the International Index of Erectile Function (IIEF) in German-speaking countries.
Head of study: Prof. Dr med. W. Weidner

State examination, University of Cologne

Degree in human medicine, Justus Liebig University, Giessen