[Epidemiological investigation on a cluster epidemic of COVID-19 in a collective workplace in Tianjin].
👤 Zhang, Y
👤 Su, X
👤 Chen, W
👤 Fei, C N
👤 Guo, L R
👤 Wu, X L
👤 Zhou, N
👤 Guo, Y T
👤 Dong, X C
👤 Zhao, Y
👤 Wang, H W
👤 Pan, Y
👤 Zuo, L J
⏰ 2020
📚 Zhonghua Liu Xing Bing Xue Za Zhi