From: Evaluation of the use of GRADE in dentistry systematic reviews and its impact on conclusions: a protocol for a methodological study
1. MEDLINE.tw.
2. systematic review.tw.
3. meta analysis.pt.
4. 1 or 2 or 3a
5. exp Dentistry/
6. 4 and 5
7. limit 6 to yr= “2016 -Current”