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Q33632715-20902692-2D1D-453C-B24F-554DE0BE25CC
Q33632715-20902692-2D1D-453C-B24F-554DE0BE25CC
BestRank
Statement
http://www.wikidata.org/entity/statement/Q33632715-20902692-2D1D-453C-B24F-554DE0BE25CC
Response rates to a mailed survey of a representative sample of cancer patients randomly drawn from the Pennsylvania Cancer Registry: a randomized trial of incentive and length effects.
P2860
Q33632715-20902692-2D1D-453C-B24F-554DE0BE25CC
BestRank
Statement
http://www.wikidata.org/entity/statement/Q33632715-20902692-2D1D-453C-B24F-554DE0BE25CC
rank
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type
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Statement
wasDerivedFrom
870662afdb36ddbff9f6399f5051e1f21047c727
P2860
Follow-up by mail in clinical trials: does questionnaire length matter?