Biosynthesis, Purification, and Substrate Specificity of Severe Acute Respiratory Syndrome Coronavirus 3C-like Proteinase - Keqiang Fan; Ping Wei; Qian Feng; Sidi Chen; Changkang Huang; Liang Ma; Bing Lai; Jianfeng Pei; Ying Liu; Jianguo Chen; Luhua Lai (Journal of Biological Chemistry, 2004)