@article{{MRA}{}, author = {Bharatam, D.}, title = { Hill’s Classification of Gastro-Oesophageal Flap Valve weakness: A valuable Tool for Endoscopic Grading of Gastro-Oesophageal Reflux Disease}, journal = {Medical Research Archives}, volume = {11}, number = {5}, year = {2023}, doi = {10.18103/mra.v11i5.3504}, url = {https://esmed.org/MRA/mra/article/view/3504} }