[1] Karaelmas Univ, Fac Med, Dept Internal Med, Div Hematol, TR-67600 Zonguldak, Turkey
[2] Karaelmas Univ, Fac Med, Dept Internal Med, Div Endocrinol, Zonguldak, Turkey
[3] Karaelmas Univ, Fac Med, Dept Internal Med, Div Gastroenterol, Zonguldak, Turkey
[4] Karaelmas Univ, Fac Med, Dept Pathol, Zonguldak, Turkey