Hozawa, Maiko http://orcid.org/0000-0002-0724-4660
Morino, Yoshihiro
Matsumoto, Yuki
Tanaka, Ryoichi
Nagata, Kyohei
Kumagai, Akiko
Tashiro, Atsushi
Doi, Akio
Yoshioka, Kunihiro
Article History
Received: 25 September 2017
Accepted: 5 January 2018
First Online: 12 January 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study is a retrospective study. For this type of study formal consent is not required.