Dwinata, M., Faculty of Medicine, Public Health and Nursing, Gadjah Mada University, Yogyakarta, Indonesia; Putera, D.D., Faculty of Medicine, Public Health and Nursing, Gadjah Mada University, Yogyakarta, Indonesia; Hasan, I., Hepatobiliary Division, Department of Internal Medicine, Universitas Indonesia, Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia; Raharjo, M., Hepatobiliary Division, Department of Internal Medicine, Universitas Indonesia, Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia