title: [Does vitamin D3 fail to protect against influenza after all?].
authors.forename: C
authors.initials: C
authors.lastname: Diehm
mesh_terms: D002112:Calcifediol / Q000008:administration & dosage*; D002118:Calcium / Q000008:administration & dosage; D003430:Cross-Sectional Studies; D004359:Drug Therapy, Combination; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology / Q000517:prevention & control*; D016032:Randomized Controlled Trials as Topic
chemical_list: D002112:Calcifediol; D002118:Calcium