What's in placebos: who knows? Analysis of randomized, controlled trials.
BACKGROUND: No regulations govern placebo composition. The composition of placebos can influence trial outcomes and merits reporting. PURPOSE: To assess how often investigators specify the composition of placebos in randomized, placebo-controlled trials. DATA SOURCES: 4 English-language general and...
| Váldodahkkit: | , , , , , |
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| Materiálatiipa: | Journal article |
| Giella: | English |
| Almmustuhtton: |
2010
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