The GSTM1 and GSTT1 null genotype frequencies were significantly di1ferent between 658 nonblack and black healthy blood donors from a BraziJian mixed population (Rio de Janeiro). The GSTMI phenotype distribution was not in Hardy-Weinberg equilibrium in either group, mainly because of an excess of the GSTM1 *A/*B genotype.
Hatagima, Ana; Marques, Christiane F.S.; Kreiger, Henrique; and Feitosa, Mary F.
"Glutathione S-Transferase Ml (GSTMl) and T1 (GSTTl) Polymorphisms in a Brazilian Mixed Population,"
6, Article 10.
Available at: http://digitalcommons.wayne.edu/humbiol/vol76/iss6/10