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Haddad L, El-Shahawy O, Ghadban R.Haddad L, et al.Int J Environ Res Public Health. 2014 Sep 15;11(9):9522-31. doi: 10.3390/ijerph110909522.Int J Environ Res Public Health. 2014.PMID: 25226410Free PMC article.
Haddad L, El-Shahawy O, Ghadban R, Barnett TE, Johnson E.Haddad L, et al.Int J Environ Res Public Health. 2015 May 29;12(6):6115-35. doi: 10.3390/ijerph120606115.Int J Environ Res Public Health. 2015.PMID: 26110330Free PMC article.Review.