Differences in interaction and subgroup-specific effects were observed between randomized and nonrandomized studies in three empirical examples
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| Description | scientific article published on 16 March 2013 |
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author: Amand F Schmidt Arno W. Hoes Maroeska M. Rovers Rolf H H Groenwold Mirjam J. Knol |
| Publication date | March 16, 2013 |
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