title: What do indicators indicate?
authors.forename: J P
authors.initials: JP
authors.lastname: Habicht
authors.forename: R J
authors.initials: RJ
authors.lastname: Stoltzfus
mesh_terms: D005260:Female; D006801:Humans; D008099:Liver / Q000378:metabolism; D008895:Milk, Human / Q000378:metabolism*; D011237:Predictive Value of Tests; D014801:Vitamin A / Q000378:metabolism*
chemical_list: D014801:Vitamin A