[1] Dr Cipto Mangunkusumo Natl Gen Hosp, Dept Internal Med, Rheumatol Div, Salemba, Jakarta, Indonesia
[2] Univ Indonesia, Fac Med, Dept Internal Med, Rheumatol Div, Kota Depok, Jakarta, Indonesia
[3] Univ Indonesia, Dr Cipto Mangunkusumo Natl Gen Hosp, Dept Internal Med, Cardiol Div,Fac Med, Kota Depok, Jakarta, Indonesia
[4] Univ Sumatera Utara, Fac Med, Dept Internal Med, Cardiovasc Div, Medan, Sumatra Utara, Indonesia
[5] Jakarta Rheumat & Autoimmune Dis Study Grp Jak RAI, Kota Depok, Jakarta, Indonesia
[6] Fac Med Univ Indonesia, Dr Cipto Mangunkusumo Natl Gen Hosp, Dept Internal Med, Fac Med, Kota Depok, Jakarta, Indonesia