Prof. Dr. Alexander Bachmann was born in 1968 in Leipzig, Germany and earned his medical degree at Leipzig University Medical School in 1994. After residency in St. Gallen, Cologne, Zurich, Gelsenkirchen and Leverkusen he became a specialist in urology in 2002. Since April 2006 he has been the Chairman of the Department of Urology Basel-Liestal, University Hospital Basel. Dr Bachmann is specialized in trans- and retroperitoneal ablative and reconstructive laparoscopy, including donor nephrectomy. He is a founding member if the International Greenlight user group and was selected as Executive Member of BPH working group of EAU and CROES. He is an Executive Board member of the Working group Laparoscopy, Endourology and robotic-assisted Laparoscopy of the German Urological Association (DGU). His research is focused on local immunological aspects of prostate cancer, high-risk bladder cancer and emerging techniques for urinary tract infection detection, including urogenital tuberculosis. ; Dr de la Rosette is Professor and Chairman of the Department of Urology, at AMC University Hospital in Amsterdam, the Netherlands. He completed his medical degree and urology residency at St Radboud University Hospital in Nijmegen, the Netherlands. He was subsequently appointed consultant urologist and Director of Minimal Invasive Urology at the Department of Urology at the St Radboud University Hospital in Nijmegen. Dr de la Rosette is the chairman of the committee on Minimal Invasive Treatment of Benign Prostatic Hyperplasia (BPH) of the International Consultation on BPH. He is also chairman of the committee on Renal Stone Disease of the International Consultation on Stone Diseases. Both consultations are patronised by the World Health Organisation (WHO). Dr de la Rosette has written over 300 peer reviewed publications and has authored many book chapters.