Demographics and Outcomes of Spine Surgery in Octogenarians and Nonagenarians: A Comparison of the National Inpatient Sample, MarketScan and National Surgical Quality Improvement Program Databases
2011 ◽
Vol 93
(17)
◽
pp. 1577-1582
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2014 ◽
Vol 14
(7)
◽
pp. 1247-1255
◽
2017 ◽
Vol 213
(4)
◽
pp. 723-730.e4
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