References
- ^Thomas M, Bomar PUpper Respiratory Tract InfectionStatPearls.(2022 Jun)
- ^Stolz D, Christ-Crain M, Gencay MM, Bingisser R, Huber PR, Müller B, Tamm MDiagnostic value of signs, symptoms and laboratory values in lower respiratory tract infection.Swiss Med Wkly.(2006-Jul-08)