%0 Journal Article %T Risk factors for mortality of coronavirus disease 2019 (COVID-19) patients during the early outbreak of COVID-19: a systematic review and meta-analysis %A Wu, Yanyan %A Li, Hongyu %A Zhang, Zhongheng %A Liang, Wenhua %A Zhang, Tiansong %A Tong, Zhenhua %A Guo, Xiaozhong %A Qi, Xingshun %J Annals of Palliative Medicine %D 2021 %B 2021 %9 %! Risk factors for mortality of coronavirus disease 2019 (COVID-19) patients during the early outbreak of COVID-19: a systematic review and meta-analysis %K %X %U https://apm.amegroups.org/article/view/66861 %V 10 %N 5 %P 5069-5083 %@ 2224-5839