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Patel VV, Whang PG, Haley TR, Bradley WD, Nunley PD, Davis RP, Miller LE, Block JE, Geisler FH.Patel VV, et al.Spine (Phila Pa 1976). 2015 Mar 1;40(5):275-82. doi: 10.1097/BRS.0000000000000735.Spine (Phila Pa 1976). 2015.PMID: 25494323Clinical Trial.