Khalid, U.A., Tariq, R., Nowshaid, W. 和 Qasim, M. 2020. SARS-CoV-2: Resurgence of an Old Companion of SARS-CoV: Resurgence of Novel SARS-CoV-2. PSM Microbiology. 5, 4 (12月 2020), 102–111.