Beta-carotene: a miss for epidemiology.
Marshall
J R
JR
D016022:Case-Control Studies; D015986:Confounding Factors, Epidemiologic; D006801:Humans; D009369:Neoplasms / Q000453:epidemiology* / Q000517:prevention & control*; D011446:Prospective Studies; D016032:Randomized Controlled Trials as Topic; D017211:Treatment Failure; D014481:United States / Q000453:epidemiology; D019207:beta Carotene / Q000627:therapeutic use*
D019207:beta Carotene