Onda, Shingo
Kanayama, Masahiro
Hashimoto, Tomoyuki
Oha, Fumihiro
Iwata, Akira
Tanaka, Masaru
Kaneko, Kazuo
Article History
Received: 6 August 2017
Accepted: 1 March 2018
First Online: 13 March 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the clinical ethics committee of the Spine Center in XXXX Central General Hospital (approval number: 2017-4) and was conducted according to the 1964 Helsinki Declaration and its later amendments. All participants gave written informed consent.