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Khan JM, Basques BA, Harada GK, Louie PK, Chen I, Vetter C, Kadakia K, Elboghdady I, Colman M, An HS.Khan JM, et al. Among authors: an hs.Spine J. 2020 Apr;20(4):563-571. doi: 10.1016/j.spinee.2019.11.003. Epub 2019 Nov 12.Spine J. 2020.PMID: 31731010
An HS, Vaccaro A, Cotler JM, Lin S.An HS, et al.Spine (Phila Pa 1976). 1994 Nov 15;19(22):2557-64. doi: 10.1097/00007632-199411001-00011.Spine (Phila Pa 1976). 1994.PMID: 7855681
An HS, Simpson JM, Glover JM, Stephany J.An HS, et al.Spine (Phila Pa 1976). 1995 Oct 15;20(20):2211-6.Spine (Phila Pa 1976). 1995.PMID: 8545714Clinical Trial.
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Shen FH, Samartzis D, Jenis LG, An HS.Shen FH, et al. Among authors: an hs.Spine J. 2004 Nov-Dec;4(6):689-700. doi: 10.1016/j.spinee.2004.05.001.Spine J. 2004.PMID: 15541704Review.
Singh K, Samartzis D, An HS.Singh K, et al. Among authors: an hs.Spine J. 2005 Jul-Aug;5(4):461-6. doi: 10.1016/j.spinee.2004.09.015.Spine J. 2005.PMID: 15996618Review.