title: [Trace elements in dental calculus--lead, cadmium and zinc collected in Tokyo and Ichikawa area].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002104:Cadmium / Q000032:analysis*; D003728:Dental Calculus / Q000032:analysis*; D006801:Humans; D007564:Japan; D007854:Lead / Q000032:analysis*; D008875:Middle Aged; D014041:Tokyo; D015032:Zinc / Q000032:analysis*
chemical_list: D002104:Cadmium; D007854:Lead; D015032:Zinc