Respiratory Tract Infections. Infections, Respiratory . Infections, Respiratory Tract . Infections, Upper Respiratory . Infections, Upper Respiratory Tract . Respiratory Infections . Upper Respiratory Infections . Infection, Respiratory Tract . Respiratory Infection, Upper . Respiratory Tract Infection . Upper Respiratory Tract Infections . Upper Respiratory Infections . Invasion of the host RESPIRATORY SYSTEM by microorganisms, usually leading to pathological processes or diseases. . 1.00
Respiratory System. Respiratory Tract . Respiratory Systems . Respiratory Tracts . System, Respiratory . Systems, Respiratory . Tract, Respiratory . Tracts, Respiratory . The tubular and cavernous organs and structures, by means of which pulmonary ventilation and gas exchange between ambient air and the blood are brought about. . 0.80