title: Vitamin D: how 32 supplements really measure up.
mesh_terms: D000328:Adult; D002118:Calcium / Q000008:administration & dosage / Q000191:economics; D002648:Child; D019587:Dietary Supplements / Q000191:economics; D016527:Drug Costs; D006801:Humans; D014807:Vitamin D / Q000008:administration & dosage / Q000191:economics
chemical_list: D014807:Vitamin D; D002118:Calcium