Hayakawa, Naoki
Kodera, Satoshi
Ohki, Noriyoshi
Kanda, Junji
Article History
Received: 15 January 2019
Accepted: 12 April 2019
First Online: 15 April 2019
Compliance with ethical standards
:
: The authors declare no potential conflicts of interest regarding the research, authorship, and/or publication of this article.
: All procedures were performed in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. Informed consent was obtained from all patients.