1. Department of Urology; Pitié-Salpêtrière Academic Hospital; Assistance Publique-Hôpitaux de Paris; Pierre and Marie Curie Medical School; Paris 6 University; Paris France
2. Department of Statistics; Pitié-Salpêtrière Academic Hospital; Assistance Publique-Hôpitaux de Paris; Pierre and Marie Curie Medical School; Paris 6 University; Paris France
3. Department of Physical Medicine and Rehabilitation; Raymond Poincaré Hospital; Assistance Publique-Hôpitaux de Paris; Paris France