Hikita, Naoko
Haruna, Megumi
Matsuzaki, Masayo
Sasagawa, Emi
Murata, Minoru
Oidovsuren, Otgontogoo
Yura, Ariunaa
Article History
Received: 19 July 2017
Accepted: 15 November 2017
First Online: 27 November 2017
Competing Interests
: The authors declare that they have no competing interests.