Siahaan, B. et al. 2020. Relationship Between GERD-Q Score with Esophagitis Findings in Endoscopy. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy. 21, 3 (Dec. 2020), 177–181. DOI:https://doi.org/10.24871/2132020177-181.