✦ LIBER ✦
Personally addressed hand-signed letters increase questionnaire response: a meta-analysis of randomised controlled trials
✍ Scribed by Pippa Scott; Phil Edwards
- Book ID
- 115019267
- Publisher
- BioMed Central
- Year
- 2006
- Tongue
- English
- Weight
- 225 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1472-6963
No coin nor oath required. For personal study only.