Soga, Koichi https://orcid.org/0000-0003-2916-2268
Itani, Kenji
Article History
Received: 21 June 2018
Accepted: 18 April 2019
First Online: 29 April 2019
Compliance with ethical standards
:
: The authors state that they have no conflict of interest.
: All procedures were performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.
: Informed consent was obtained from all the patients for being included in the study.