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Anderson K, McSharry CP, Clark C, Clark CJ, Barclay GR, Morris GP.Anderson K, et al. Among authors: mcsharry cp.Occup Environ Med. 1996 Feb;53(2):106-11. doi: 10.1136/oem.53.2.106.Occup Environ Med. 1996.PMID: 8777446Free PMC article.