title: The assessment of vitamin A status.
mesh_terms: D000328:Adult; D000818:Animals; D002648:Child; D006801:Humans; D008099:Liver / Q000378:metabolism* / Q000473:pathology; D009751:Nutritional Requirements; D012177:Retinol-Binding Proteins / Q000378:metabolism; D014801:Vitamin A / Q000097:blood / Q000502:physiology*; D014802:Vitamin A Deficiency / Q000175:diagnosis* / Q000473:pathology
chemical_list: D012177:Retinol-Binding Proteins; D014801:Vitamin A