Kimura, Yasushi http://orcid.org/0000-0003-3759-1580
Osuga, Keigo
Nagai, Keisuke
Hongyo, Hidenari
Tanaka, Kaishu
Ono, Yusuke
Higashihara, Hiroki
Matsuzaki, Shinya
Endo, Masayuki
Kimura, Tadashi
Tomiyama, Noriyuki
Article History
Received: 6 November 2019
Accepted: 6 February 2020
First Online: 12 February 2020
Ethics approval and consent to participate
: This retrospective study was approved by the ethics committee of our hospital.
: For this type of study formal consent is not required.
: The authors declare that they have no competing interests.