The distributions of allele frequency ratios for all analyzed genes were in Hardy–Weinberg equilibrium. The observed genotype and allele frequencies for Rh, Kell, Duffy, Kidd, and Diego systems are illustrated in Table 1. These frequencies were compared with other populations (mixed Brazilian and Japanese) and are presented inTable 2(although only genotypes frequencies are cited, at times, in the original paper, phenotype requencies were defined).