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White RH, Spengler JD, Dilwali KM, Barry BE, Samet JM.White RH, et al. Among authors: spengler jd.Arch Environ Occup Health. 2005 Mar-Apr;60(2):70-6. doi: 10.3200/AEOH.60.2.70-76.Arch Environ Occup Health. 2005.PMID: 16983859Free PMC article.
Bell ML, Davis D, Cifuentes L, Cohen A, Gouveia N, Grant L, Green C, Johnson T, Rogat J, Spengler J, Thurston G.Bell ML, et al.Environ Health Perspect. 2002 Nov;110(11):1163-8. doi: 10.1289/ehp.021101163.Environ Health Perspect. 2002.PMID: 12417489Free PMC article.