Nelwan, E.J., Division of Tropical and Infectious Diseases, Department of Internal Medicine, Dr. Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Tjuanda, W.H., Division of Tropical and Infectious Diseases, Department of Internal Medicine, Dr. Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Adiwinata, R., Division of Tropical and Infectious Diseases, Department of Internal Medicine, Dr. Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Kumala, M., Division of Tropical and Infectious Diseases, Department of Internal Medicine, Dr. Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Sutanto, I., Department of Parasitology, Dr. Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Santoso, W.D., Division of Tropical and Infectious Diseases, Department of Internal Medicine, Dr. Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia