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The effect of portable HEPA filter air cleaners on indoor PM2.5 concentrations and second hand tobacco smoke exposure among pregnant women in Ulaanbaatar, Mongolia: The UGAAR randomized controlled trial.
Barn P, Gombojav E, Ochir C, Laagan B, Beejin B, Naidan G, Boldbaatar B, Galsuren J, Byambaa T, Janes C, Janssen PA, Lanphear BP, Takaro TK, Venners SA, Webster GM, Yuchi W, Palmer CD, Parsons PJ, Roh YM, Allen RW. Barn P, et al. Among authors: laagan b. Sci Total Environ. 2018 Feb 15;615:1379-1389. doi: 10.1016/j.scitotenv.2017.09.291. Epub 2017 Oct 17. Sci Total Environ. 2018. PMID: 29751442 Free article. Clinical Trial.