title: Clinical aspect of respiratory tract infections.
mesh_terms: D006801:Humans; D012121:Respiration, Artificial / Q000009:adverse effects; D012131:Respiratory Insufficiency / Q000209:etiology* / Q000628:therapy; D012141:Respiratory Tract Infections / Q000150:complications* / Q000517:prevention & control; D018805:Sepsis / Q000150:complications; D013242:Sterilization