Preaching to the Choir
Background. Observational studies evaluating elective training programs may be biased if learners who enroll differ from nonenrollees. To assess self-selection bias, we compared participants who enrolled in 2 different online courses in complementary and alternative medical therapies. Methods. Parti...
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| Formaat: | Boek |
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SAGE Publishing,
2015-04-01T00:00:00Z.
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A1234.567 |
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| Kopie 1 | Beschikbaar |