Original language | English |
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Pages (from-to) | 71-72 |
Number of pages | 2 |
Journal | Journal of epidemiology and community health |
Volume | 54 |
Issue number | 1 |
Publication status | Published - Jan 2000 |
The effect of a direct payment or a lottery on questionnaire response rates: a randomised controlled trial
P J Roberts, C Roberts, B Sibbald, D J Torgerson
Research output: Contribution to journal › Article › peer-review