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Newton PO, Upasani VV, Farnsworth CL, Oka R, Chambers RC, Dwek J, Kim JR, Perry A, Mahar AT.Newton PO, et al. Among authors: upasani vv.J Bone Joint Surg Am. 2008 Dec;90(12):2695-706. doi: 10.2106/JBJS.G.01424.J Bone Joint Surg Am. 2008.PMID: 19047716
Newton PO, Farnsworth CL, Upasani VV, Chambers RC, Varley E, Tsutsui S.Newton PO, et al. Among authors: upasani vv.Spine (Phila Pa 1976). 2011 Jan 15;36(2):109-17. doi: 10.1097/BRS.0b013e3181cc8fce.Spine (Phila Pa 1976). 2011.PMID: 20595923