IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-11-12-45503 Original Research Paper A Study Of Clinical, Endoscopic And Manometric Profile Of Patients With Refractory Gastro-Esophageal Reflux Disease In A Tertiary Care Hospital M.S. Revathy Dr. Dr. V.V.M. Sreeram Dr. December 2022 11 12 01 02