1. Amnesty says coronavirus has killed at least 3,000 health workers. Available at: https://www.aljazeera.com/news/2020/07/amnesty-coronavirus-killed-3000-health-workers-200713082718506.html. Accessed July 16, 2020.
2. The laboratory diagnosis of typhus fever: Further observations on the value and on the significance of the Weil-Felix reaction.;Fairley;J Hyg (Lond),1919
3. Private war: Memoirs of a doctor soldier 1933-1944 (Prywatna Wojna).;Lazowski,1991
4. Detection of SARS-CoV-2 in different types of clinical specimens.;Wang;JAMA,2020
5. Detection of SARS-CoV-2 by bronchoscopy after negative nasopharyngeal testing: Stay vigilant for COVID-19.;Ramos;Respir Med Case Rep,2020