
Risk factors for COVID-19 infection among close contacts of COVID-19 cases in Baoshan District, Shanghai Municipality
GAO Ya, JIANG Wen-jie, YAO Li-li, ZHENG Yu-chao, JIN Kai, XIANG Lun-hui, ZHANG Qin-li
Practical Preventive Medicine ›› 2022, Vol. 29 ›› Issue (4) : 399-401.
Risk factors for COVID-19 infection among close contacts of COVID-19 cases in Baoshan District, Shanghai Municipality
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