To send or not to send: weighing the costs and benefits of mailing an advance letter to participants before a telephone survey https://t.co/qjocjYJRcv HT @CAMHnews MT @BioMedCentral https://t.co/0Ci0eYIMcd
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To send or not to send: weighing the costs and benefits of mailing an advance letter to participants before a telephone survey https://t.co/xNjVIRLfxz HT @CAMHnews MT @BioMedCentral https://t.co/d8szJ4sM9b
17,724 followers
To send or not to send: weighing the costs and benefits of mailing an advance letter to participants before a telephone survey https://t.co/xNjVIRLfxz HT @CAMHnews MT @BioMedCentral https://t.co/Fbp6pkwVwY
5,998 followers
To send or not to send: weighing the costs and benefits of mailing an advance letter to participants before a telephone survey https://t.co/iyvRUJ1YVE HT @CAMHnews MT @BioMedCentral https://t.co/02zCvaU6JT