Evaluating non-randomised intervention studies.
To consider methods and related evidence for evaluating bias in non-randomised intervention studies. Systematic reviews and methodological papers were identified from a search of electronic databases; handsearches of key medical journals and contact with experts working in the field. New empirical s...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2003
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