Affiliation: | (1) Department of Gastroenterology, Second Medical Clinic, Policlinico Umberto I, Via del Policlinico, University La Sapienza, 00161 Rome, Italy, IT;(2) Department of Surgery, Second Medical Clinic, Policlinico I, Via del Policlinico, University of La Sapienza, 00161 Rome, Italy, IT;(3) Department of Radiology, First Medical Clinic, Policlinico Umberto I, Via del Policlinico, University La Sapienza, 00161 Rome, Italy, IT;(4) Department of Human Pathology, University of Parma, Via Gramsci 14, 43100 Parma, Italy, IT;(5) Department of Surgery, VA Medical Center West Los Angeles, 11301 Wilshire Boulevard, Los Angeles, California 90073, U.S.A., US |