Yu-Qin He, Xin Fu, Dong-Feng Chen, and Dong-Feng Chen. “Rare Cause of Severe Hematemesis Due to IgG4-Related Gastric Ulcer”. Turkish Journal of Gastroenterology 30, no. 10 (October 11, 2019): 925–927. Accessed January 4, 2026. https://tjg.avesjournals.com/index.php/tjg/article/view/3791.