HIGHLIGHTS
- who: Yangqin Xun from the Charitu00e9 Medical University of Berlin, Germany have published the research: Characteristics of the sources, evaluation, and grading of the certainty of evidence in systematic reviews in public health: A methodological study, in the Journal: (JOURNAL)
- how: The authors calculated on the item scores directly from the assessment of the authors of the include reviews and then evaluated the overall methodological quality of the primary studies as described above.
SUMMARY
This study aims to investigate how the sources, types and quality assessment methods of evidence vary across . . .
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