@article{Chen_2020,
title={Epidemic characteristics of the COVID-19 outbreak in Tianjin,
a well-developed city in China},
volume={48},
ISSN={0196-6553},
url={http://dx.doi.org/10.1016/j.ajic.2020.06.006},
DOI={10.1016/j.ajic.2020.06.006},
number={9},
journal={American Journal of Infection Control},
publisher={Elsevier BV},
author={Chen,
Ting and Guo,
Songxue and Zhong,
Ping},
year={2020},
month=sep,
pages={1068–1073} }