[1] Hacettepe Univ, Fac Med, Pediat Rheumatol, Ankara, Turkey
[2] Dokuz Eylul Univ, Fac Med, Pediat Rheumatol, Ankara, Turkey
[3] Univ Hlth Sci, Ankara Child Hlth & Dis Hematol Oncol Training &, Pediat Rheumatol, Ankara, Turkey
[4] Hacettepe Univ, Fac Med, Radiol, Ankara, Turkey