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Calogero Vetro, Giacomo Bonanno, Giorgio Giulietti, Alessandra Romano, Concetta Conticello, Annalisa Chiarenza, Paolo Spina, Francesco Coppolino, Rosario Cunsolo, Francesco Di Raimondo 
World J Gastrointest Endosc 7(10):928-949. Published online Aug 10, 2015. doi: 10.4253/wjge.v7.i10.928
Minireviews
Retrospective Study