(Q30632811)
Statements
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Is shorter always better? Relative importance of questionnaire length and cognitive ease on response rates and data quality for two dietary questionnaires (English)
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R G Ziegler
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A F Subar
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F E Thompson
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C C Johnson
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J L Weissfeld
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D Reding
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K H Kavounis
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R B Hayes
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Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial Investigators
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1 February 2001
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153
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404-409
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Identifiers
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