Funding for this research was provided by:
Received: 2 February 2021
Accepted: 9 May 2021
First Online: 13 May 2021
: The study protocol was approved by the ethics committee of Kyoto University Graduate School of Medicine (no. G278) and by the Nagahama Municipal Review Board. Written informed consent was obtained from all participants.
: Not applicable.
: SF has a research grant from, the Ministry of Education, Culture, Sports, Science and Technology of Japan, JSPS KAKENHI Grant Number JP 20K18964. SA has a research grants from Astellas, grants from Astra Zeneca, grants from Tosoh. TAF reports grants and personal fees from Mitsubishi-Tanabe, personal fees from MSD, personal fees from Shionogi, outside the submitted work; In addition, TAF has a patent 2018-177688 concerning smartphone CBT apps pending, and intellectual properties for Kokoro-app licensed to Mitsubishi-Tanabe. OE was supported by the Swiss National Science Foundation (Ambizione grant number 180083). All of the other authors declare that they have no competing interests.