title: Observational versus randomised trial evidence.
authors.forename: Kay-Tee
authors.initials: KT
authors.lastname: Khaw
authors.forename: Nick
authors.initials: N
authors.lastname: Day
authors.forename: Sheila
authors.initials: S
authors.lastname: Bingham
authors.forename: Nick
authors.initials: N
authors.lastname: Wareham
mesh_terms: D000886:Anthropometry; D000975:Antioxidants / Q000008:administration & dosage* / Q000378:metabolism; D001205:Ascorbic Acid / Q000008:administration & dosage* / Q000097:blood; D002318:Cardiovascular Diseases / Q000517:prevention & control*; D015986:Confounding Factors, Epidemiologic; D004032:Diet; D005260:Female; D006801:Humans; D008297:Male; D019370:Observation; D016032:Randomized Controlled Trials as Topic; D012959:Socioeconomic Factors
chemical_list: D000975:Antioxidants; D001205:Ascorbic Acid