Shinkai, Yoichiro
,
Oshima, Yusuke
Yoneda, Kazuhito
Kogo, Jiro
Imai, Hisanori
Watanabe, Akira
Matsui, Yoshitsugu
Suzuki, Kotaro
Sotozono, Chie
Article History
Received: 8 July 2019
Revised: 13 August 2019
Accepted: 21 August 2019
First Online: 2 September 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in this retrospective multicenter survey study involving human participants were in accordance with the ethical standards of the requirements for a parallel Institutional Review Board (IRB; Registration No. UMIN000031103) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.