Shigemura, Katsumi http://orcid.org/0000-0002-5695-2794
Kitagawa, Koichi
Nomi, Masashi
Yanagiuchi, Akihiro
Sengoku, Atsushi
Fujisawa, Masato
Article History
Received: 9 January 2019
Accepted: 26 March 2019
First Online: 4 April 2019
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: 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.
: For this type of study formal consent is not required.