[1] Balikesir City Hosp, Dept Pediat Endocrinol, Balikesir, Turkey
[2] Uludag Univ, Sch Med, Dept Pediat Gastroenterol & Hepatol, Bursa, Turkey
[3] Marmara Univ, Sch Med, Istanbul, Turkey
[4] Dr Behcet Uz Child Dis & Pediat Surg Training & R, Pediat Gastroenterol Hepatol & Nutr, Izmir, Turkey
[5] Erciyes Univ, Sch Med, Dept Pediat Gastroenterol & Hepatol, Kayseri, Turkey