[1] Inst Invest Biomed Salamanca IBSAL, Grp Invest Multidisciplinar Urol Renal GRUMUR, Salamanca, Spain
[2] Complejo Asistencial Univ Avila, Serv Urol, Avila, Spain
[3] Univ Rosario, Escuela Med & Ciencias Salud, Bogota, Colombia
[4] Hosp Univ Canarias, Serv Urol, Santa Cruz De Tenerife, Spain
[5] Hosp Univ Pero Covilha, Serv Urol, Covilha, Portugal
[6] Ctr Hosp & Univ Coimbra, Serv Urol, Coimbra, Portugal
[7] Hosp Univ Virgen del Camino, Serv Urol, Pamplona, Spain
[8] Complejo Univ Hosp Ourense, Serv Urol, Orense, Spain
[9] Hosp Univ Puerta dle Mar, Serv Urol, Cadiz, Spain
[10] Hosp Azienda Osped Univ Integrata, Serv Urol, Verona, Italy
[11] Univ Salamanca, Dept Cirugia, Salamanca, Spain
[12] Hosp Univ Salamanca, Serv Urol, Salamanca, Spain