Firmansyah, I., I. Hasan, L. Lesmana, I. Alwi, and P. Rahardjo. “Prolonged QTc-Interval in Liver Cirrhotic Patient: Prevalence and Its Relationship With Severity of Liver Dysfunction”. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy, vol. 5, no. 1, Jan. 2004, pp. 1-6, doi:10.24871/5120041-6.