| web | http://www.newsweek.com/impact-cleaning-products-lung-health-bad-20-day-cigarette-habit-study-810277 |
| author | Tom Porter |
| publication | Newsweek |
| date | 2018-02-18 |
| web | O Svanes, RJ Bertelsen | American Journal of Respirator... | 2018-02-01 |
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