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Filippo Antonini, Liboria Laterza, Lorenzo Fuccio, Massimo Marcellini, Lucia Angelelli, Sonia Calcina, Corrado Rubini, Giampiero Macarri 
World J Gastrointest Oncol 9(11):452-456. Published online Nov 15, 2017. doi: 10.4251/wjgo.v9.i11.452