## Abstract ## BACKGROUND. Observational data are used increasingly to assess the effectiveness of therapies. However, selection biases are likely to have an impact on results and threaten the validity of these studies. ## METHODS. The primary objective of the current study was to explore the ef
Publication of additional negative data from cancer therapy studies
- Publisher
- John Wiley and Sons
- Year
- 1954
- Tongue
- English
- Weight
- 102 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0008-543X
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