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Tashkin DP, Kleerup EC, Hoh CK, Kim KJ, Webber MM, Gil E.Tashkin DP, et al. Among authors: kleerup ec.Chest. 1997 Aug;112(2):327-35. doi: 10.1378/chest.112.2.327.Chest. 1997.PMID: 9266865
Gil E, Chen B, Kleerup E, Webber M, Tashkin DP.Gil E, et al.Life Sci. 1995;56(23-24):2193-9. doi: 10.1016/0024-3205(95)00207-m.Life Sci. 1995.PMID: 7776849