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Nakash, R., J. Hutton, S. Lamb, S. Gates, and J. Fisher. Response and Non-response to Postal Questionnaire Follow-up in a Clinical Trial--a Qualitative Study of the Patient's Perspective. 2008.

Nakash, R., et al. Response and Non-response to Postal Questionnaire Follow-up in a Clinical Trial--a Qualitative Study of the Patient's Perspective. 2008.