Chair M., Division of Rheumatology, Department of Internal Medicine, Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia, Faculty of Medicine, University of Indonesia, Jakarta, Indonesia; Hi̇Dayat R., Division of Rheumatology, Department of Internal Medicine, Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia, Faculty of Medicine, University of Indonesia, Jakarta, Indonesia; Sumariyono, Division of Rheumatology, Department of Internal Medicine, Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia, Faculty of Medicine, University of Indonesia, Jakarta, Indonesia; Abdullah M., Faculty of Medicine, University of Indonesia, Jakarta, Indonesia, Department of Internal Medicine, Dr. Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia; Parlindungan F., Division of Rheumatology, Department of Internal Medicine, Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia, Faculty of Medicine, University of Indonesia, Jakarta, Indonesia, University of Indonesia Hospital, Depok, Indonesia