Authors: Konstantinos N Tzirogiannis; Kalliopi T Kourentzi; Sofia Zyga; Vassiliki Papalimneou; Maria Tsironi; Agni D Grypioti; Ioannis Protopsaltis; Dimitrios Panidis; Georgios I Panoutsopoulos Journal: BMC Gastroenterol Date: 2014-11-30 Impact factor: 3.067