(Q24799288)

English

A randomised controlled trial to determine the effect on response of including a lottery incentive in health surveys [ISRCTN32203485]

scientific article

Statements

A randomised controlled trial to determine the effect on response of including a lottery incentive in health surveys [ISRCTN32203485] (English)
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L M Roberts
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S Wilson
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A Roalfe
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P Bridge
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8 November 2004
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4
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1
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30
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