Fig. 3From: Oral exposure to lead for Japanese children and pregnant women, estimated using duplicate food portions and house dust analysesSmoking experience and passive smoking. Comparison of Pb concentrations in blood of pregnant women (a, b), cord blood (c, d) between non-smokers and smoking experienced (a, c), or between non-smokers and passive smokers (b, d). There was no statistical significance in all comparisons (WMW test)Back to article page