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Milton DK, Walters MD, Hammond K, Evans JS.Milton DK, et al. Among authors: walters md.Am Ind Hyg Assoc J. 1996 Oct;57(10):889-96. doi: 10.1080/15428119691014396.Am Ind Hyg Assoc J. 1996.PMID: 8865598
Walters M, Milton D, Larsson L, Ford T.Walters M, et al.Appl Environ Microbiol. 1994 Mar;60(3):996-1005. doi: 10.1128/aem.60.3.996-1005.1994.Appl Environ Microbiol. 1994.PMID: 8161191Free PMC article.