[1] Istanbul Medeniyet Univ, Gortepe Prof Dr Suleyman Yalcin City Hosp, Dept Pediat Rheumatol, TR-34722 Istanbul, Turkey
[2] Univ Hlth Sci, Umraniye Res & Training Hosp, Dept Pediat Rheumatol, Istanbul, Turkey
[3] Istanbul Univ, Fac Med, Dept Pediat Rheumatol, Istanbul, Turkey
[4] Univ Hlth Sci, Dr Sami Ulus Matern & Child Hlth & Dis Res & Trai, Dept Pediat Rheumatol, Ankara, Turkey
[5] Sanliurfa Res & Training Hosp, Dept Pediat Rheumatol, Sanliurfa, Turkey
[6] Univ Hlth Sci, Bakirkoy Dr Sadi Konuk Res & Training Hosp, Dept Pediat Rheumatol, Istanbul, Turkey
[7] Kocaeli Univ, Fac Med, Dept Pediat Rheumatol, Kocaeli, Turkey
[8] Univ Hlth Sci, Zeynep Kamil Women & Childrens Dis Training & Res, Dept Pediat Rheumatol, Istanbul, Turkey