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 Date: 2010-09-16 22:05:37Bias Data collection Confounding Selection bias Question Statistics Cohort study Design of experiments |
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| First Page | Document Content | |
|---|---|---|
Date: 2010-09-16 22:05:37Bias Data collection Confounding Selection bias Question Statistics Cohort study Design of experiments |
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11 questions for critical appraisal of trial