Painter Daniel J, Timoney Anthony G, Denton Karin, Alken Peter, Keeley Francis X
Bristol Urological Institute, Southmead Hospital, Westbury-on-Trym, Bristol, UK, and Department of Urology, University of Mannheim, Germany.
BJU Int. 2007 May;99(5):973-7. doi: 10.1111/j.1464-410X.2007.06801.x.