|
Records
Download key passages/title pages as a PDF
Bell JA (1948b). Use of an alum-precipitated mixture of pertussis vaccine and diphtheria toxoid.
JAMA 137:1009-1016.
Methodological context
- Control of allocation bias
- Background / Related records
- Control of observer bias
- Background / Related records
- Play of chance
- Background / Related records
- 'Intention-to-treat' analysis
- Background / Related records
|