| 1 | Search rhinitis[Title/Abstract] |
| 2 | Search rhinitis[MeSH Terms] |
| 3 | Search rhinosinusitis[Title/Abstract] |
| 4 | Search sinusitides[MeSH Terms] |
| 5 | Search (#1 OR #2 OR #3 OR #4) |
| 6 | Search work[Title/Abstract] |
| 7 | Search workplace[Title/Abstract] |
| 8 | Search work‐related[Title/Abstract] |
| 9 | Search workplace[MeSH Terms] |
| 10 | Search environment*[Title/Abstract] |
| 11 | Search environment[MeSH Terms] |
| 12 | Search employment[Title/Abstract] |
| 13 | Search employment[MeSH Terms] |
| 14 | Search occupation*[Title/Abstract] |
| 15 | Search air pollutants, occupational[MeSH Terms] |
| 16 | Search disease, occupational[MeSH Terms] |
| 17 | Search exposure, occupational[MeSH Terms] |
| 18 | Search (#6 OR #7 OR #8 OR #9 OR #10 Or #11 OR #12 OR #13 OR #14 OR #15 OR #16 OR #17 |
| 19 | Search (#5 AND #18) |
| 20 | Search randomized controlled trial [pt] |
| 21 | Search controlled clinical trial [pt] |
| 22 | Search randomized [tiab] |
| 23 | Search placebo [tiab] |
| 24 | Search clinical trials as topic [mesh: noexp] |
| 25 | Search randomly [tiab] |
| 26 | Search trial [ti] |
| 27 | Search (#20 OR #21 OR #22 OR #23 OR #24 OR #25 OR #26) |
| 28 | Search (animals [mh] NOT humans [mh]) |
| 29 | Search (#27 NOT #28) |
| 30 | Search (#19 AND #29) |