Lee, Young Bae, Jaeho Han, Jeong Hyeon Cho, and Hong Sub Lee. 2016. “Clinical Outcomes of Endoscopic Surveillance for Gastric Ulcers in Populations With a High Prevalence of Gastric Cancer”. Turkish Journal of Gastroenterology 27 (5):421-27. https://doi.org/10.5152/tjg.2016.16373.