The effect of vascular risk factor burden on the severity of COVID-19 illness, a retrospective cohort study oleh Houwei Du, Xiaobin Pan, Nan Liu, Junnian Chen, Xiaoling Chen, David J. Werring, Gareth Ambler, Xiaoqing Li, Ronghua Chen, Yixian Zhang, Huayao Huang, Feifei Lin, Pincang Xia, Chao Chen, Zhenyang Zheng, Sangru Wu, Hanhan Lei, Lei Gao, Mingxu Huang, Kexu Lin, Xiaoping Xu, Yukun Luo, Ziwen Zhao, Chen Li, Hailong Lin, Yu Lin, Zhenghui Huang, Rongxiang Cao, Limin Chen, On behalf of the Fujian Medical Team Support Wuhan for COVID-19