title: A study of the trace elements in human cataractous lenses and sera.
mesh_terms: D000328:Adult; D000368:Aged; D002386:Cataract / Q000378:metabolism*; D003300:Copper / Q000032:analysis; D006801:Humans; D007908:Lens, Crystalline / Q000032:analysis*; D008875:Middle Aged; D014131:Trace Elements / Q000032:analysis* / Q000097:blood; D015032:Zinc / Q000032:analysis
chemical_list: D014131:Trace Elements; D003300:Copper; D015032:Zinc