title: Letter: Diagnosis of superior-vena-cave obstruction.
mesh_terms: D000368:Aged; D002305:Cardiac Tamponade / Q000175:diagnosis; D002404:Catheterization; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008722:Methods; D013577:Syndrome; D014652:Vascular Diseases / Q000175:diagnosis*; D014683:Vena Cava, Superior; D014690:Venous Pressure