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...
| Main Authors: | , |
|---|---|
| 格式: | Journal article |
| 語言: | English |
| 出版: |
2008
|