J Korean Neurosurg Soc. 2014;56(3):261-264.   Published online September 30, 2014
DOI: https://doi.org/10.3340/jkns.2014.56.3.261

J Korean Neurosurg Soc. 2013;53(5):297-299.   Published online May 31, 2013
DOI: https://doi.org/10.3340/jkns.2013.53.5.297

J Korean Neurosurg Soc. 2012;51(5):312-315.   Published online May 31, 2012
DOI: https://doi.org/10.3340/jkns.2012.51.5.312

J Korean Neurosurg Soc. 2011;49(2):112-115.
DOI: https://doi.org/10.3340/jkns.2011.49.2.112

J Korean Neurosurg Soc. 2009;46(1):74-76.
DOI: https://doi.org/10.3340/jkns.2009.46.1.74

J Korean Neurosurg Soc. 2009;45(1):43-45.
DOI: https://doi.org/10.3340/jkns.2009.45.1.43