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Puno RM, Bechtold JE, Byrd JA 3rd, Winter RB, Ogilvie JW, Bradford DS.Puno RM, et al. Among authors: ogilvie jw.Spine (Phila Pa 1976). 1991 Aug;16(8):973-80. doi: 10.1097/00007632-199108000-00019.Spine (Phila Pa 1976). 1991.PMID: 1948384