Extrathoracic assisted breathing evaluated by cinefluorography.
D000818:Animals; D001783:Blood Flow Velocity; D002933:Cineradiography; D004285:Dogs; D004562:Electrocardiography; D007442:Intubation, Intratracheal; D008722:Methods; D011175:Positive-Pressure Respiration; D011652:Pulmonary Circulation; D012121:Respiration, Artificial / Q000295:instrumentation*; D012129:Respiratory Function Tests; D012122:Ventilators, Mechanical