Estimating the effect of the run-in on the power of the Physicians' Health Study. [electronic resource]
Producer: 19911226Description: 1585-93 p. digitalISSN:- 0277-6715
- Aspirin -- therapeutic use
- Cardiovascular Diseases -- mortality
- Carotenoids -- therapeutic use
- Data Interpretation, Statistical
- Double-Blind Method
- Humans
- Neoplasms -- prevention & control
- Patient Compliance
- Randomized Controlled Trials as Topic -- methods
- Research Design
- Surveys and Questionnaires
- beta Carotene
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Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.
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