Factors that can affect the external validity of randomised controlled trials
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| Format: | Journal article |
| Language: | English |
| Published: |
Public Library of Science
2006
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| Summary: |
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| Main Author: | |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
Public Library of Science
2006
|
| Subjects: |
| Summary: |
|---|