Received: 3 December 2019
Accepted: 4 February 2020
First Online: 10 February 2020
Ethics approval and consent to participate
: This study was conducted after receiving approval from the Kyoto University Graduate School and Department of Medicine faculty on the Kyoto University Hospital ethics committee. Written informed consent was obtained from all study participants.
: All participants provided consent to publish before completing the questionnaires.
: The authors declare that they have no competing interests.