Increasing response to postal questionnaires
- Edwards, P
- Roberts, I
- Clarke, M
- DiGuiseppi, C
- Pratap, S
- Wentz, R
- Kwan, I
- Cooper, R
International Journal of Epidemiology 36(5):p 966-967, October 2007.
Copyright © International Epidemiological Association 2007. Published by Oxford University Press. All rights reserved.