Yagi, Chihiro https://orcid.org/0000-0002-6178-3702
Morita, Yuka
Takahashi, Kuniyuki
Ogi, Manabu
Oshima, Shinsuke
Yamamoto, Yutaka
Horii, Arata
Article History
Received: 6 January 2019
Accepted: 12 March 2019
First Online: 18 March 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was approved by the IRB of Niigata University Medical and Dental Hospital (#2017-0271). 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 obtained from all individual participants included in the study.