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Adithya M Pathanki, Joseph A Attard, Elizabeth Bradley, Sarah Powell-Brett, Bobby V M Dasari, John R Isaac, Keith J Roberts, Nikolaos A Chatzizacharias 
World J Gastrointest Pathophysiol 11(2):20-31. Published online Apr 12, 2020. doi: 10.4291/wjgp.v11.i2.20
Observational Study