1. Department of Urology, University General Hospital of Alicante, Alicante, Spain.
2. Department of Urology, “La Fe” Polytechnic University Hospital in Valencia, Valencia, Spain.
3. Department of Urology, University Hospital of Vinalopo, Elche, Spain.
4. Department of Pediatric Surgery, University General Hospital of Alicante, Alicante, Spain.