[1] Sapienza Univ Rome, St Andrea Hosp, Dept Urol, I-00185 Rome, Italy
[2] Sapienza Univ Rome, Dept Maternal & Child Hlth & Urol Sci, Policlin Umberto 1, I-00185 Rome, Italy
[3] Nuovo Osped Castelli, Dept Urol, I-00040 Rome, Italy
[4] Mater Dei Hosp, I-00197 Rome, Italy
[5] Biofertil IVF & Infertil Ctr, I-00198 Rome, Italy