1 "San Giovanni di Dio e Ruggi D'Aragona" University Hospital, Scuola Medica Salernitana - Salerno, Italy.
2 Center of Excellence of Bariatric Surgery of the Italian Society of Obesity Surgery and Metabolic Disease (SICOB), Unit of General and Emergency Surgery, University Hospital San Giovanni di Dio e Ruggi d'Aragona, P.O. Gaetano FucitoMercato San Severino, Salerno, Italy.
3 Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana", University of Salerno, Baronissi, Salerno, Italy.
4 Istituto Nazionale per lo Studio e la Cura dei Tumori di Napoli, Fondazione "G. Pascale", 80131 Naples, Italy.