title: Variability in vitamin D content among products for multivitamin and mineral supplements.
authors.affiliation: US Department of Agriculture, Beltsville, Maryland.
authors.forename: Karen W
authors.initials: KW
authors.lastname: Andrews
authors.forename: Pamela R
authors.initials: PR
authors.lastname: Pehrsson
authors.forename: Joseph M
authors.initials: JM
authors.lastname: Betz
mesh_terms: D004339:Drug Compounding / Q000592:standards*; D004366:Nonprescription Drugs / Q000592:standards*; D014807:Vitamin D / Q000592:standards*
chemical_list: D004366:Nonprescription Drugs; D014807:Vitamin D