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Teresa Arrigo, Salvatore Leonardi, Caterina Cuppari, Sara Manti, Angela Lanzafame, Gabriella D’Angelo, Eloisa Gitto, Lucia Marseglia, Carmelo Salpietro 
World J Gastroenterol 21(2):384-395. Published online Jan 14, 2015. doi: 10.3748/wjg.v21.i2.384
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