(Q51977015)
Statements
Evaluation of 2 brief instruments and a food-frequency questionnaire to estimate daily number of servings of fruit and vegetables. (English)
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A F Subar
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S M Krebs-Smith
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L L Kahle
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F E Thompson
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V Kipnis
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D Midthune
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N Potischman
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A Schatzkin
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1 June 2000
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71
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6
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1503-1510
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