Uchida, Hiroki
Iwashita, Yukio
Tada, Kazuhiro
Saga, Kunihiro
Takayama, Hiroomi
Hirashita, Teijiro
Endo, Yuichi
Ohta, Masayuki
Inomata, Masafumi
Article History
Received: 16 August 2017
Accepted: 22 March 2018
First Online: 4 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in the study were in accordance with the ethical standard of our institution and with the 1964 Helsinki declaration and its later amendments.
: Informed consent was obtained from all individual participants included in the study.