1. https://www.worldometers.info/coronavirus/
2. Wenling W, Xu Y, Gao R, Lu R, Han K, Wu G, Tan W (2020) Detection of SARS-CoV-2 in different types of clinical specimens. JAMA 323:1843−1844
3. Yang Y, Yang M, Shen C, Wang F, Yuan J, Li J, Zhang M (2020) Laboratory diagnosis and monitoring the viral shedding of 2019-nCoV infections. MedRxiv 1:100061
4. Ai T, Yang Z, Hou H, Zhan C, Chen C, Lv W, Tao Q, Sun Z, Xia L (2020) Correlation of chest CT and RT-PCR testing in coronavirus disease 2019 (COVID-19) in China: a report of 1014 cases. Radiology 296:200642
5. Kanne JP, Little BP, Chung JH, Elicker BM, Ketai LH (2020) Essentials for radiologists on COVID-19: an update—radiology scientific expert panel. Radiology 296:200527