Patel, Keyur Suryakant, Prabhat B. Nichkaode, Sunil V. Panchabhai, Manichandra Reddy, Balaji Prathep Santhan, and Chandan Singh. 2020. “Evaluation of Persistent Upper Abdominal Pain by Upper Gastrointestinal Endoscopy”. International Surgery Journal 7 (3):791-96. https://doi.org/10.18203/2349-2902.isj20200824.