Salvatore Bracchitta1, Luigi M Bracchitta2, Francesco Pata3,4. 1. Coloproctology Centre, Clinica del Mediterraneo, Ragusa, Italy. 2. Primary Care Department, ATS Città Metropolitana di Milano, Milan, Italy. 3. Department of Surgery, Nicola Giannettasio Hospital, Corigliano-Rossano, Italy. 4. La Sapienza University, Rome, Italy.