Short biography Prof Dr. J.A.Witjes Fred Witjes is professor in oncological urology. His research interest is translational and clinical research in bladder, prostate and testicular cancer. He has many training and teaching activities. He is a member of several international societies, and he chairs, amongst others, the Dutch guidelines committee on bladder cancer and the EAU guidelines committee on metastatic and muscle-invasive bladder cancer. Since 2010 he is member of the European Urology Scolarship Program. He is reviewer for many, and editor of several urological and oncological journals. He is involved in and leads many studies and projects which has resulted in many lectures and almost 500 (peer reviewed) publications, reviews and bookchapters.