Evaluation of problems in assisted ventilation.
D003937:Diagnosis, Differential; D005767:Gastrointestinal Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D007442:Intubation, Intratracheal / Q000009:adverse effects*; D011859:Radiography; D012121:Respiration, Artificial / Q000009:adverse effects*