Ichikawa, Shintaro http://orcid.org/0000-0001-8043-8472
Kromrey, Marie-Luise
Motosugi, Utaroh
Onishi, Hiroshi
Article History
Received: 1 June 2020
Revised: 21 July 2020
Accepted: 25 July 2020
First Online: 1 August 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.