| D | Search | Hits |
|---|---|---|
| #1 | MeSH descriptor: [Acupuncture Therapy] explode all trees | 3787 |
| #2 | MeSH descriptor: [Migraine Disorders] explode all trees | 1832 |
| #3 | MeSH descriptor: [Post-Exposure Prophylaxis] explode all trees | 39 |
| #4 | MeSH descriptor: [Pre-Exposure Prophylaxis] explode all trees | 28 |
| #5 | headach* | 21148 |
| #6 | conventional treatmen* | 21120 |
| #7 | MeSH descriptor: [Drug Therapy] explode all trees | 126895 |
| #8 | MeSH descriptor: [Drug Therapy, Combination] explode all trees | 40281 |
| #9 | migraine frequenc* | 907 |
| #10 | migraine attac* | 1398 |
| #11 | #2 or #3 or #4 or #5 | 21633 |
| #12 | #6 or #7 or #8 | 144326 |
| #13 | #9 or #10 | 1849 |
| #14 | #1 and #11 and #12 and #13 in Cochrane Reviews (Reviews and Protocols) and Other Reviews | 8 |
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