title: Serum copper in children (6-12 years old): an age-correction factor.
mesh_terms: D001741:Black or African American; D000367:Age Factors; D002648:Child; D003300:Copper / Q000097:blood*; D005006:Ethnicity; D005260:Female; D006801:Humans; D008297:Male; D008433:Mathematics; D008800:Mexico; D012572:School Health Services; D013781:Texas; D044465:White People
chemical_list: D003300:Copper