Yuwono, B., U. Maimunah, and B. Widodo. “The Association Between The Degree of Liver Cirrhosis Severity and Zinc Serum Level”. Current Internal Medicine Research and Practice Surabaya Journal, vol. 1, no. 1, Jan. 2020, pp. 5-9, doi:10.20473/cimrj.v1i1.16996.