title: Artifact in the control group undermines the conclusions of a vitamin D and cancer study.
authors.forename: Richard
authors.initials: R
authors.lastname: Schabas
mesh_terms: D000368:Aged; D002118:Calcium / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D015994:Incidence; D009369:Neoplasms / Q000453:epidemiology*; D012107:Research Design; D014807:Vitamin D / Q000008:administration & dosage*
chemical_list: D014807:Vitamin D; D002118:Calcium