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Smeets M, Dalton P.Smeets M, et al.Int Arch Occup Environ Health. 2002 Oct;75(8):541-8. doi: 10.1007/s00420-002-0364-y. Epub 2002 Aug 16.Int Arch Occup Environ Health. 2002.PMID: 12373316
Opiekun RE, Smeets M, Sulewski M, Rogers R, Prasad N, Vedula U, Dalton P.Opiekun RE, et al.Clin Exp Allergy. 2003 Sep;33(9):1256-65. doi: 10.1046/j.1365-2222.2003.01753.x.Clin Exp Allergy. 2003.PMID: 12956748Clinical Trial.