Fig. 2From: Food intake survey of kindergarten children in Korea: Part 3 cadmium and lead burdenDistribution of Cd-Uob and Pb-Uob. a Cd in urine (as observed, i.e., with no correction for urine density) (Cd-Uob), b Pb in urine (as observed, i.e., with no corection for urine density) (Pb-Uob). The curve in the figure shows a normal distributionBack to article page