[1] Ankara City Hosp, Dept Internal Med, Ankara, Turkey
[2] Ankara City Hosp, Div Rheumotol, Dept Internal Med, Ankara, Turkey
[3] Ankara Yildirim Beyazit Univ, Sch Med, Dept Internal Med, Ankara, Turkey
[4] Ankara Yildirim Beyazit Univ, Sch Med, Dept Internal Med, Div Rheumotol, Ankara, Turkey