Funding for this research was provided by:
Institute for Health Economics and Policy, Japan.
Received: 20 January 2020
Accepted: 26 August 2020
First Online: 16 September 2020
Compliance with Ethical Standards
: This study was approved by the Research Ethics Committee of Kyoto University, Japan (approval number R1342).
: The authors declare that they do not have a conflict of interest.
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