title: Commentary: Flawed study designs are not salvaged by large samples.
authors.affiliation: Department of Nutrition, Harvard School of Public Health, 665 Huntington Avenue, Boston, MA 02115, USA.
authors.forename: Walter C
authors.initials: WC
authors.lastname: Willett
mesh_terms: D015982:Bias; D015415:Biomarkers / Q000097:blood; D004032:Diet; D015930:Diet Records; D015340:Epidemiologic Research Design; D006801:Humans; D018401:Sample Size; D011795:Surveys and Questionnaires
chemical_list: D015415:Biomarkers