Parlindungan, F., Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine Universitas Indonesia-Cipto, Mangunkusumo General Hospital, Indonesia; Hidayat, R., Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine Universitas Indonesia-Cipto, Mangunkusumo General Hospital, Indonesia; Sumariyono, S., Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine Universitas Indonesia-Cipto, Mangunkusumo General Hospital, Indonesia; Koesnoe, S., Department of Internal Medicine, Faculty of Medicine Universitas, Indonesia-Cipto Mangunkusumo General Hospital, Indonesia