Clinical characteristics of novel coronavirus cases in tertiary hospitals in Hubei Province oleh Kui Liu, Yuan-Yuan Fang, Yan Deng, Wei Liu, Mei-Fang Wang, Jing-Ping Ma, Wei Xiao, Ying-Nan Wang, Min-Hua Zhong, Cheng-Hong Li, Guang-Cai Li, Hui-Guo Liu, Xiu-Yuan Hao, Pei-Fang Wei