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deVries HA, Housh TJ, Johnson GO, Evans SA, Tharp GD, Housh DJ, Hughes RA.deVries HA, et al. Among authors: hughes ra.Ergonomics. 1990 Jan;33(1):25-33. doi: 10.1080/00140139008927091.Ergonomics. 1990.PMID: 2335164