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Provision of pen along with questionnaire does not increase the response rate to a postal survey: a randomised
T J Clark1, K S Khan, J K Gupta
1Academic Department of Obstetrics and Gynaecology, Birmingham Women's Hospital, Birmingham B15 2TG, UK. T.J.Clark@bham.ac.uk
Journal of Epidemiology and Community Health
|July 13, 2001
Abstract
No abstract available in PubMed .