Papadaki H, Kosteas T, Gemetzi C, Christoforidou A, Anagnou N, Eliopoulos G. Low serum gamma-glutamyltranspeptidase (GGT) in patients with chronic idiopathic neutropenia is not implicated in the pathophysiology of the disease. Haematologica 2003; 88(11):ELT32-ELT32.