File:Randomization in clinical trials.webm
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Summary
| Description |
English: In some phase 2 and all phase 3 clinical trials, patients are assigned to groups that receive different treatments. The process of assigning patients to these groups by chance is called randomization. Learn how researchers randomly assign clinical trial participants to different treatment groups in order to prevent bias in the results. |
| Date | |
| Source | http://www.cancer.gov/ |
| Author | National Cancer Institute |
Licensing
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This image is a work of the National Institutes of Health, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:47, 5 February 2021 |  | (3.58 MB) | wikimediacommons>DarylM at NCI | Uploaded a work by US Government from http://www.cancer.gov/ with UploadWizard |
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