Akamatsu, Fumikazu
Shimizu, Hideaki
Kamada, Aya
Igi, Yukari
Fujii, Tsutomu
Goto-Yamamoto, Nami
Article History
Received: 14 November 2018
Accepted: 11 July 2019
First Online: 30 July 2019
Competing Interests
: The authors declare no competing interests.