Asahi, Takashi
Taira, Takaomi
Ikeda, Kiyonobu
Yamamoto, Jiro
Sato, Shuji
Article History
Received: 7 November 2017
Accepted: 25 January 2018
First Online: 8 February 2018
Compliance with ethical standards
: This study was approved by the Ethics Committee of Kanazawa Neurosurgical Hospital (ID 28-04).
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from the participant included in this report.