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Gwak SJ, Koo H, Yun Y, Yhee JY, Lee HY, Yoon DH, Kim K, Ha Y.Gwak SJ, et al. Among authors: ha y.J Biomed Mater Res A. 2015 Nov;103(11):3474-82. doi: 10.1002/jbm.a.35489. Epub 2015 May 19.J Biomed Mater Res A. 2015.PMID: 25904025
Yoon DH, Ha Y, Park YG, Chang JW.Yoon DH, et al. Among authors: ha y.J Neurosurg. 2003 Jul;99(1 Suppl):39-43. doi: 10.3171/spi.2003.99.1.0039.J Neurosurg. 2003.PMID: 12859057Free article.Clinical Trial.
Ha Y, Kim YS, Cho JM, Yoon SH, Park SR, Yoon DH, Kim EY, Park HC.Ha Y, et al.J Neurosurg Spine. 2005 Jan;2(1):55-61. doi: 10.3171/spi.2005.2.1.0055.J Neurosurg Spine. 2005.PMID: 15658127
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Kim MJ, Ha Y, Yang MS, Yoon DH, Kim KN, Kim H, Yang JW, Lee JY, Yi S, Jung WJ, Rha KH.Kim MJ, et al. Among authors: ha y.Acta Neurochir (Wien). 2010 Apr;152(4):675-9. doi: 10.1007/s00701-009-0568-y. Epub 2009 Dec 4.Acta Neurochir (Wien). 2010.PMID: 19960356
Ahn PG, Yoon DH, Shin HC, Kim KN, Yi S, Lee DY, Yang MS, Ha Y.Ahn PG, et al. Among authors: ha y.Spine (Phila Pa 1976). 2010 Feb 1;35(3):E80-3. doi: 10.1097/BRS.0b013e3181b95dea.Spine (Phila Pa 1976). 2010.PMID: 20075773Review.
Choi GH, Yang MS, Yoon DH, Shin HC, Kim KN, Yi S, Lee DY, Ahn PG, Ha Y.Choi GH, et al. Among authors: ha y.Childs Nerv Syst. 2010 Jun;26(6):835-40. doi: 10.1007/s00381-009-1076-3. Epub 2010 Jan 22.Childs Nerv Syst. 2010.PMID: 20094721Review.
Oh JS, Ha Y, An SS, Khan M, Pennant WA, Kim HJ, Yoon DH, Lee M, Kim KN.Oh JS, et al. Among authors: ha y.Neurosci Lett. 2010 Mar 26;472(3):215-9. doi: 10.1016/j.neulet.2010.02.008. Epub 2010 Feb 11.Neurosci Lett. 2010.PMID: 20153400
An SS, Jin HL, Kim KN, Kim DS, Cho J, Liu ML, Oh JS, Yoon DH, Lee MH, Ha Y.An SS, et al. Among authors: ha y.Childs Nerv Syst. 2010 Mar;26(3):323-31. doi: 10.1007/s00381-009-1040-2.Childs Nerv Syst. 2010.PMID: 20183925