Chihara, Shinya
Masuda, Yoshiki
Tatsumi, Hiroomi
Nakano, Kota
Shimada, Tomokazu
Murohashi, Takao
Yamakage, Michiaki
Article History
Received: 21 December 2015
Accepted: 11 July 2016
First Online: 28 July 2016
Compliance with ethical standards
:
: The authors declare that we have no conflict of interests regarding this manuscript.
Free to read: This content has been made available to all.