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Hansen J, Raaschou-Nielsen O, Christensen JM, Johansen I, McLaughlin JK, Lipworth L, Blot WJ, Olsen JH.Hansen J, et al. Among authors: lipworth l.J Occup Environ Med. 2001 Feb;43(2):133-9. doi: 10.1097/00043764-200102000-00012.J Occup Environ Med. 2001.PMID: 11227631