Fig. 1From: Paradoxical increases in serum levels of highly chlorinated PCBs in aged women in clear contrast to robust decreases in dietary intakes from 1980 to 2003 in JapanSerum concentrations of PCBs (ng/g lipid) in females born from 1940 to 1953 in the three different surveys (1980, 1995, and 2003). The letters indicate the results of statistical analyzes by ANOVA. When the ANOVA was significant, Tukey’s post hoc tests were conducted. The letters A and B indicate that the corresponding values differ significantly at p < 0.05, while A and AB or AB and B do notBack to article page