COMPARATIVE STUDY OF EFFECT OF DIFFERENT DURATIONS OF PREOPERATIVE FASTING ON GASTRIC pH AND VOLUME - A PROSPECTIVE RANDOMIZED DOUBLE BLIND STUDY. - Naidu, Harshitha P.; Punetha, Pankaj; Choudhary, Vrushali; Chalam, Kolli S.; N., Charan (International Journal of Medicine & Public Health, 2026)