Harefa, Department of Internal Medicine, Faculty of Medicine, University of Indonesia/Dr, CiptoMangunkusumo National Hospital Jakarta, Jakarta, Indonesia; Wijaya, I.P., Department of Internal Medicine, Faculty of Medicine, University of Indonesia/Dr, CiptoMangunkusumo National Hospital Jakarta, Jakarta, Indonesia; Muhadi, Department of Internal Medicine, Faculty of Medicine, University of Indonesia/Dr, CiptoMangunkusumo National Hospital Jakarta, Jakarta, Indonesia; Rumende, C.M., Department of Internal Medicine, Faculty of Medicine, University of Indonesia/Dr, CiptoMangunkusumo National Hospital Jakarta, Jakarta, Indonesia; Nasution, S.A., Department of Internal Medicine, Faculty of Medicine, University of Indonesia/Dr, CiptoMangunkusumo National Hospital Jakarta, Jakarta, Indonesia; Koesnoe, S., Department of Internal Medicine, Faculty of Medicine, University of Indonesia/Dr, CiptoMangunkusumo National Hospital Jakarta, Jakarta, Indonesia; Marbun, M.B., Department of Internal Medicine, Faculty of Medicine, University of Indonesia/Dr, CiptoMangunkusumo National Hospital Jakarta, Jakarta, Indonesia; Shatri, H., Department of Internal Medicine, Faculty of Medicine, University of Indonesia/Dr, CiptoMangunkusumo National Hospital Jakarta, Jakarta, Indonesia