title: A clue to pulmonary embolism obtained during Swan-Ganz catheterization.
mesh_terms: D006328:Cardiac Catheterization / Q000379:methods*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011655:Pulmonary Embolism / Q000175:diagnosis*; D011669:Pulmonary Wedge Pressure