. 2012 Aug 31;52(2):75–79. doi: 10.3340/jkns.2012.52.2.75
Copyright © 2012 The Korean Neurosurgical Society
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Fig. 1.
Flow diagram of enrolled patients.