Pragmatic controlled clinical trials in primary care: the struggle between external and internal validity (Q24805041)
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scientific article
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Pragmatic controlled clinical trials in primary care: the struggle between external and internal validity |
scientific article |
Statements
Pragmatic controlled clinical trials in primary care: the struggle between external and internal validity (English)
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22 December 2003
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3
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1
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28
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1 reference