@article{202003.0307,
	doi = {10.20944/preprints202003.0307.v1},
	url = {https://doi.org/10.20944/preprints202003.0307.v1},
	year = 2020,
	month = {March},
	publisher = {Preprints},
	author = {Lei Zhang and Youwei Zhang},
	title = {Influenza Viral Infection is a High-Risk Factor for Developing Coronavirus Disease 2019 (COVID-19)},
	journal = {Preprints}
}