Randomization is essential for progress in transplant medicine.
Improvements in immunosuppressive regimens are likely to be moderate in size. Therefore, studies to detect them reliably require a guarantee of small biases (so randomization is essential) and small random errors. Even after adjustment, nonrandomized studies may have large biases, so are not a suita...
| Những tác giả chính: | , |
|---|---|
| Định dạng: | Journal article |
| Ngôn ngữ: | English |
| Được phát hành: |
2008
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