Fujiwara, Kaori http://orcid.org/0000-0001-7414-5761
Shimizu, Junya http://orcid.org/0000-0002-2298-4632
Tsukahara, Hirokazu http://orcid.org/0000-0002-6432-9038
Shimada, Akira http://orcid.org/0000-0001-5207-3779
Article History
Received: 6 March 2019
Accepted: 29 July 2019
First Online: 7 August 2019
Compliance with ethical standards
:
: All authors declare 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 (include name of committee + reference number) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Written informed consent was obtained from parents of the patients for publication.