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Atlas SJ, Singer DE, Keller RB, Patrick DL, Deyo RA.Atlas SJ, et al.Am J Ind Med. 1996 Jun;29(6):584-9. doi: 10.1002/(SICI)1097-0274(199606)29:6<584::AID-AJIM2>3.0.CO;2-K.Am J Ind Med. 1996.PMID: 8773718
Atlas SJ, Deyo RA, Keller RB, Chapin AM, Patrick DL, Long JM, Singer DE.Atlas SJ, et al.Spine (Phila Pa 1976). 1996 Aug 1;21(15):1777-86. doi: 10.1097/00007632-199608010-00011.Spine (Phila Pa 1976). 1996.PMID: 8855462