(Q39605930)
Statements
Reproducibility and validity of an expanded self-administered semiquantitative food frequency questionnaire among male health professionals (English)
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Reproducibility and Validity of an Expanded Self-Administered Semiquantitative Food Frequency Questionnaire among Male Health Professionals (English)
Willett WC
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Colditz GA
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Stampfer MJ
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Giovannucci EL
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E. L. Giovannucci
G. A. Colditz
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15 May 1992
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135
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10
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1114-26; discussion 1127-36
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