. 2020 Apr 23;8(4):e17642. doi: 10.2196/17642
©Zheyu Wang, Haoce Huang, Liping Cui, Juan Chen, Jiye An, Huilong Duan, Huiqing Ge, Ning Deng. Originally published in JMIR Medical Informatics (http://medinform.jmir.org), 23.04.2020.
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Figure 12.
Structure of the system.