Hirakawa, Hidetada
Suzue, Kazutomo
Takita, Ayako
Awazu, Chikako
Kurushima, Jun
Tomita, Haruyoshi
Article History
Received: 5 April 2020
Accepted: 31 August 2020
First Online: 23 September 2020
Competing interests
: The authors declare no competing interests.