Fujimori, Motoshi http://orcid.org/0000-0003-3671-3785
Kamishima, Tamotsu http://orcid.org/0000-0002-7293-7471
Narita, Akihiro http://orcid.org/0000-0001-6488-7294
Henmi, Mihoko http://orcid.org/0000-0003-4279-581X
Kato, Masaru http://orcid.org/0000-0002-2023-6585
Sutherland, Kenneth http://orcid.org/0000-0003-3494-5427
Nishida, Mutsumi http://orcid.org/0000-0002-8406-7311
Tanaka, Yuki http://orcid.org/0000-0003-3346-7662
Yutong, Lu http://orcid.org/0000-0002-4901-6586
Tanimura, Kazuhide http://orcid.org/0000-0002-7679-3241
Atsumi, Tatsuya http://orcid.org/0000-0001-5657-962X
Article History
Received: 13 February 2019
Accepted: 3 May 2019
First Online: 14 May 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was waivered because of the retrospective study design.