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Reviewing the Literature: Why? For Whom? How? Part I. Research Design and Sampling 2. Searching and Screening: The Practical Screen and Methodological Quality Part II. Collection, Interventions, Analysis, Results, and Conclusions 3. Searching and Screening: Methodological Quality 4. Doing the Review: A Reader's Guide Chapter 5. What Did You Find? Synthesizing Results
A Fri, study studied this question.