1. Detection of 2019 novel coronavirus (2019-nCoV) by real-time RT-PCR;Corman;Eurosurveillance,2020
2. D. A. GENERALE DELLA PREVENZIONE SANITARIA Ufficio di Gabinetto Sede Protezione Civile, M. Sviluppo Economico, and M. Del Lavoro Politiche Sociali, “Ministero della Salute.” Accessed: January 14, 2021. [Online]. Available: https://www.ecdc.europa.eu/en/covid-19/surveillance/case-definition.
3. Sensitivity of SARS-CoV-2 Detection With Nasopharyngeal Swabs;Clerici;Front Public Heal,2021
4. Clinical features of COVID-19 in elderly patients: A comparison with young and middle-aged patients;Liu;J Infect,2020
5. Positive rate of RT-PCR detection of SARS-CoV-2 infection in 4880 cases from one hospital in Wuhan, China, from Jan to Feb 2020;Liu;Clin Chim Acta,2020