J Korean Neurosurg Soc. 2013;54(5):379-383.   Published online November 30, 2013
DOI: https://doi.org/10.3340/jkns.2013.54.5.379

J Korean Neurosurg Soc. 2010;48(2):119-124.
DOI: https://doi.org/10.3340/jkns.2010.48.2.119

J Korean Neurosurg Soc. 2005;38(3):196-201.

J Korean Neurosurg Soc. 2005;38(2):144-146.

J Korean Neurosurg Soc. 2005;38(2):111-115.

J Korean Neurosurg Soc. 1987;16(4):1073-1082.