Yamamoto, Akiko http://orcid.org/0000-0002-7385-0140
Nakamura, Toshiro
Ohata, Yasuhisa http://orcid.org/0000-0001-6084-6620
Kubota, Takuo
Ozono, Keiichi
Article History
Received: 20 January 2020
Revised: 2 March 2020
Accepted: 3 March 2020
First Online: 31 March 2020
Conflict of interest
: The authors declare that they have no conflict of interest.