Pressure-flow studies in man during pulsus alternans.
D000328:Adult; D001011:Aorta; D001783:Blood Flow Velocity; D001794:Blood Pressure; D002306:Cardiac Volume; D006339:Heart Rate; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011674:Pulse; D013997:Time Factors