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Why we need observational studies to evaluate the effectiveness of health care.
The view is widely held that experimental methods (randomised controlled trials) are the "gold standard" for evaluation and that observational methods (cohort and case control studies) have little or no value. This ignores the limitations of randomised trials, which may prove unnecessary,...
Αποθηκεύτηκε σε:
| Κύριος συγγραφέας: | |
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| Μορφή: | Artigo |
| Γλώσσα: | Inglês |
| Έκδοση: |
BMJ Group
1996
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| Θέματα: | |
| Διαθέσιμο Online: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2350940/ https://ncbi.nlm.nih.gov/pubmed/8634569 |
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