[This corrects the article DOI: 10.2196/17561.].
©Andy Hau Yan Ho, Oindrila Dutta, Geraldine Tan-Ho, Toh Hsiang Benny Tan, Xinyi Casuarine Low, Sashikumar Ganapathy, Josip Car, Ringo Moon-Ho Ho, Chun Yan Miao. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 18.08.2020.