title: Improved methods for determining vitamin A status.
authors.affiliation: National Institute of Nutrition, Indian Council of Medical Research, Jamai Osmania PO, Hyderabad.
authors.forename: B
authors.initials: B
authors.lastname: Sivakumar
mesh_terms: D006801:Humans; D007194:India; D014801:Vitamin A / Q000097:blood*; D014802:Vitamin A Deficiency / Q000097:blood / Q000175:diagnosis*
chemical_list: D014801:Vitamin A