Kai, Chiharu
Uchiyama, Yoshikazu http://orcid.org/0000-0003-2083-4152
Shiraishi, Junji
Fujita, Hiroshi
Doi, Kunio
Article History
Received: 2 October 2017
Revised: 3 May 2018
Accepted: 4 May 2018
First Online: 10 May 2018
Compliance with ethical standards
:
: The authors declare no conflict of interest.
: All study procedures involving human participants were performed in accordance with the ethical standards of the Institutional Review Board (IRB) and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: We used data from a public database in this study. The IRB of our institute allowed us to use data from those cases.
: This study did not involve any animal models.