| BALF | bronchoalveolar lavage fluid |
| Df | Dermatophagoides farina |
| EIA | enzyme immunoassay |
| IFN | interferon |
| IL | interleukin |
| KC | keratinocyte-derived chemokine |
| MIP | macrophage inflammatory protein |
| NS | normal saline |
| PM | particulate matter |
| PM1 | particulate matter from 7–28 February 2013 |
| PM2 | particulate matter from 7–28 April 2013 |
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