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Petsonk EL, Olenchock SA, Castellan RM, Banks DE, Mull JC, Hankinson JL, Bragg KC, Perkins HH, Cocke JB.Petsonk EL, et al. Among authors: castellan rm.Br J Ind Med. 1986 Mar;43(3):182-7. doi: 10.1136/oem.43.3.182.Br J Ind Med. 1986.PMID: 3947581Free PMC article.