Increasing the Response Rate to a Mailed Questionnaire by Including more Stamps on the Return Envelope: A Cotwin Control Study (Q57269048)
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| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Increasing the Response Rate to a Mailed Questionnaire by Including more Stamps on the Return Envelope: A Cotwin Control Study |
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Increasing the response rate to a mailed questionnaire by including more stamps on the return envelope: a cotwin control study (English)