. 2021 Apr 16;23(4):e24120. doi: 10.2196/24120
©Kipyo Kim, Hyeonsik Yang, Jinyeong Yi, Hyung-Eun Son, Ji-Young Ryu, Yong Chul Kim, Jong Cheol Jeong, Ho Jun Chin, Ki Young Na, Dong-Wan Chae, Seung Seok Han, Sejoong Kim. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 16.04.2021.
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