[Hair zinc values of school children and adolescents in urban districts of Beijing].
D000293:Adolescent; D002648:Child; D002681:China; D005260:Female; D006197:Hair / Q000032:analysis*; D006801:Humans; D008297:Male; D012016:Reference Values; D013054:Spectrophotometry, Atomic; D014505:Urban Population; D015032:Zinc / Q000032:analysis*
D015032:Zinc