| # | Searches | Results |
|---|---|---|
| 1 | Drug Resistance/ | 49125 |
| 2 | ((drug* or pharma* or treat*) adj2 (resist* or refractor*)).tw,kf. | 170130 |
| 3 | 1 or 2 | 206987 |
| 4 | Mania/ | 368 |
| 5 | Bipolar Disorder/ | 44383 |
| 6 | (mania* or manic* or bipolar).tw,kf. | 83705 |
| 7 | 4 or 5 or 6 | 94119 |
| 8 | 3 and 7 | 1815 |
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