商丘市91例新型冠状病毒肺炎流行病学特征分析

刘利容, 许世禄, 余瑞芳, 李红星

Epidemiological characteristics of 91 cases of coronavirus disease 2019 in Shangqiu city

LIU Li-rong, XU Shi-lu, YU Rui-fang, LI Hong-xing

实用预防医学 . 2020, (8): 916 -918 . DOI: 10.3969/j.issn.1006-3110.2020.08.006