Variations in general practitioners' response to postal questionnaires
- PMID: 5727145
- PMCID: PMC1059146
- DOI: 10.1136/jech.22.4.199
Variations in general practitioners' response to postal questionnaires
References
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- Br Med J. 1959 Oct 17;2(Suppl 2856):119-72 - PubMed
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