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Claudio Marcel B Stadnik, Cassia Ferreira B Caurio, Edison M Rodrigues-Filho, Wagner L Nedel, Guido PC Cantisani, Maria L Zanotelli, Alessandro C Pasqualotto 
World J Gastrointest Pathophysiol 12(3):51-58. Published online May 22, 2021. doi: 10.4291/wjgp.v12.i3.51