Fig. 2From: Anemia risk in relation to lead exposure in lead-related manufacturingCorrelation matrix showing the relations among BPb level, age, working years, and indicators of hematopoietic function for lead-exposed workers for (a) male and (b) female (represented as Pearson correlation coefficient: * p < 0.05, ** p < 0.01, *** p < 0.001)Back to article page