| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7520370 | Journal of Clinical Epidemiology | 2016 | 7 Pages |
Abstract
Results of first trials often change, but the magnitude of change, on average, is small. Exceptions are first trials that present large treatment effects, which often dissipate as new evidence accrues.
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Authors
Gerald Gartlehner, Andreea Dobrescu, Tammeka Swinson Evans, Kylie Thaler, Barbara Nussbaumer, Isolde Sommer, Kathleen N. Lohr,