Methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism and high plasma homocysteine in chronic hepatitis C (CHC) infected patients from the Northeast of Brazil - Siqueira, Erika R. F.; Oliveira, Cláudia P. M. S.; Muniz, Maria T. C.; Silva, Filipe; Pereira, Leila M. M. B.; Carrilho, Flair J. (Nutrition Journal, 2011)