Public Health Nutrition · 2002 · 212 citations · 14 references
Total vegetable and fruit intake follows a south-north gradient in both genders, whereas for several sub-groups of vegetables a different geographic distribution exists. Differences in mean intake of V&F by centre were not explained by lifestyle factors associated with V&F intake.
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Applied Regression Analysis and Other Multivariable Methods
Esteban Walker, David G. Kleinbaum, Lawrence L. Kupper et al. · Technometrics · 1989 · 8.3K citations
Engineering, Estimation Statistic, Best Regression Equation +12
The Effect of Fruit and Vegetable Intake on Risk for Coronary Heart Disease
Kaumudi Joshipura, Frank B. Hu, JoAnn E. Manson et al. · Annals of Internal Medicine · 2001 · 1.4K citations · Full text