“…In this issue of the Revista Brasileira de Hematologia e Hemoterapia , Garcia et al ( 6 ) present an analysis of the frequency of the C398T polymorphism in a cohort of 62 patients with hematological cancers that had no allelic disequilibrium when compared to control populations matched by inferred ascendency. However, they describe an excess of the C398T polymorphism in the patients taken as whole group compared with the controls.…”