. 2022 Jan 11;10(1):e33600. doi: 10.2196/33600
©Zhongan Zhang, Xu Zheng, Kai An, Yunfan He, Tong Wang, Ruizhu Zhou, Qilin Zheng, Mingfu Nuo, Jun Liang, Jianbo Lei. Originally published in JMIR Medical Informatics (https://medinform.jmir.org), 11.01.2022.
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Figure 2.
Establishment year of enterprises, displayed by year.