Article History
Received: 5 July 2019
Accepted: 7 February 2020
First Online: 3 March 2020
Change Date: 12 May 2020
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Competing interests
: Jiyun Choi is a researcher and Seyun Chang is the CTO of Mobile Doctor Co., Ltd., which manufactured the “FeverCoach” app. Jong Gyun Ahn has no conflict of interest to disclose. No funding was received for conducting this study.