J Korean Neurosurg Soc. 2012;51(3):177-181.   Published online March 31, 2012
DOI: https://doi.org/10.3340/jkns.2012.51.3.177

J Korean Neurosurg Soc. 2010;48(3):199-206.
DOI: https://doi.org/10.3340/jkns.2010.48.3.199

J Korean Neurosurg Soc. 2010;47(6):464-466.
DOI: https://doi.org/10.3340/jkns.2010.47.6.464

J Korean Neurosurg Soc. 2007;42(1):35-41.

J Korean Neurosurg Soc. 2003;33(2):160-165.

J Korean Neurosurg Soc. 2002;32(5):463-469.