title: Pulmonary artery pulsus alternans associated with pulmonary embolism.
mesh_terms: D001794:Blood Pressure; D006328:Cardiac Catheterization; D006493:Heparin / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000503:physiopathology*; D011655:Pulmonary Embolism / Q000188:drug therapy / Q000503:physiopathology*; D011674:Pulse; D014859:Warfarin / Q000627:therapeutic use
chemical_list: D014859:Warfarin; D006493:Heparin