- Correspondence to Professor Yang-Ha Hwang, Department of Neurology, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Republic of Korea, 130, Dongduk-ro, Jung-gu, Daegu 41944, Republic of Korea;
- Received 14 April 2016
- Revised 2 June 2016
- Accepted 13 June 2016
- Published online 16 June 2017.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.