title: Serum vitamin A and carotene levels in Down's syndrome and other retarded subjects showing enamel abnormalities of the permanent dentition.
mesh_terms: D002338:Carotenoids / Q000097:blood*; D003743:Dental Enamel / Q000002:abnormalities*; D004314:Down Syndrome / Q000097:blood / Q000150:complications; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000097:blood* / Q000150:complications; D008297:Male; D012737:Sex Factors; D014071:Tooth Abnormalities / Q000150:complications; D014801:Vitamin A / Q000097:blood*
chemical_list: D014801:Vitamin A; D002338:Carotenoids