Full text
PDFSelected References
These references are in PubMed. This may not be the complete list of references from this article.
- Feinstein A. R. Clinical biostatistics. XLI. Hard science, soft data, and the challenges of choosing clinical variables in research. Clin Pharmacol Ther. 1977 Oct;22(4):485–498. doi: 10.1002/cpt1977224485. [DOI] [PubMed] [Google Scholar]
- Knipschild P., Leffers P., Feinstein A. R. The qualification period. J Clin Epidemiol. 1991;44(6):461–464. doi: 10.1016/0895-4356(91)90208-q. [DOI] [PubMed] [Google Scholar]