Ventilators.
D004867:Equipment Design; D006611:High-Frequency Jet Ventilation / Q000295:instrumentation; D006801:Humans; D007385:Intermittent Positive-Pressure Ventilation / Q000295:instrumentation; D008838:Microcomputers; D011175:Positive-Pressure Respiration / Q000295:instrumentation; D015656:Respiratory Mechanics; D012122:Ventilators, Mechanical