Takahashi, Toshiyuki
Okamoto, Takayuki http://orcid.org/0000-0002-6029-451X
Sato, Yasuyuki
Yamazaki, Takeshi
Hayashi, Asako
Aoyagi, Hayato
Ueno, Michihiko
Kobayashi, Norio
Uetake, Kimiaki
Nakanishi, Masanori
Ariga, Tadashi
Article History
Received: 1 April 2018
Revised: 9 August 2018
Accepted: 16 August 2018
First Online: 23 August 2018
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. This study was approved by the Research Ethics Committee of Hokkaido University Hospital.
: Informed consent was obtained from the parents of all patients included in the study.