Darnindro, N. et al. 2020. Association of Aspartate Aminotransferase (AST) and Alanine Aminotransferase (ALT) with Mortality in Patients with Coronavirus Disease 2019 (COVID-19) in Fatmawati General Hospital: A Preliminary Data. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy. 21, 2 (Sept. 2020), 89–94. DOI:https://doi.org/10.24871/212202089-94.