Mechanisms of pulsus alternans.
D000328:Adult; D000792:Angiography; D001024:Aortic Valve Stenosis / Q000503:physiopathology*; D001795:Blood Pressure Determination; D001811:Blood Volume Determination; D006328:Cardiac Catheterization; D005117:Cardiac Complexes, Premature / Q000503:physiopathology*; D005260:Female; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011674:Pulse / Q000502:physiology*