Copyright © Xi-Shuang Chen, Hui-Zhen Liu, Jingxian Fang, Sui-Jun Wang, Yue-Xia Han, Jian Meng, Yu Han, Hui-Ming Zou, Qing Gu, Xue Hu, Qian-Wen Ma, Fang Huang. Originally published in the Journal of Medical Internet Research (https://www.jmir.org)
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