Ngaosri, S., T. Jetiyanon, and W. Tapin. “A Retrospective Cohort study: The Mortality Rate of Patient with Acute Cholangitis Performing Endoscopic Retrograde Cholangiopancreatography Within and After 48 Hours”. Health Science Clinical Research, vol. 37, no. 2, Dec. 2022, pp. 37-47, doi:10.1016/hscr.v37i2.259631.