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. 2015 Jul 30;2015(7):CD011815. doi: 10.1002/14651858.CD011815
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)