Epidemiological studies of cereals, fruit and vegetables.
Schatzkin
A
A
National Cancer Institute, Bethesda, MD 20814, USA.
D015982:Bias; D015986:Confounding Factors, Epidemiologic; D004043:Dietary Fiber / Q000008:administration & dosage*; D002523:Edible Grain; D016021:Epidemiologic Studies; D019317:Evidence-Based Medicine; D005638:Fruit; D006801:Humans; D009369:Neoplasms / Q000517:prevention & control*; D014675:Vegetables