Enkh-Undraa, Dambajamts
Kanda, Seiji http://orcid.org/0000-0002-1797-3509
Shima, Masayuki
Shimono, Takaki
Miyake, Mari
Yoda, Yoshiko
Nagnii, Saijaa
Nishiyama, Toshimasa
Article History
Received: 21 May 2019
Accepted: 23 September 2019
First Online: 27 November 2019
Ethics approval and consent to participate
: This study was approved by the institutional review board of Kansai Medical University (reference No. 1510). The children’s parents or legal guardians provided written informed consent.
: All of the authors have approved the manuscript and given their consent for publication.
: The authors declare that they have no competing interests.