Fig. 2From: Primaquine-induced haemolysis in females heterozygous for G6PD deficiencyPhenotypic differences in quantitative G6PD activity between males and females. In a male population (a) there are two evident phenotypes (G6PD normal and deficient) as shown by the clearly bimodal distribution in the histogram. In a female population (b) some will have an intermediate phenotype as shown by the continuous distribution. (This figure was adapted from Oo et al. [26])Back to article page