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Alamgir H, Yu S, Chavoshi N, Ngan K.Alamgir H, et al.Occup Med (Lond). 2008 Aug;58(5):348-54. doi: 10.1093/occmed/kqn026. Epub 2008 Mar 28.Occup Med (Lond). 2008.PMID: 18375942
Alamgir H, Yu S, Gorman E, Ngan K, Guzman J.Alamgir H, et al.Am J Ind Med. 2009 Jan;52(1):69-75. doi: 10.1002/ajim.20641.Am J Ind Med. 2009.PMID: 18942668