title: The use of venous pressure measurements and directional doppler recordings in distinguishing between superficial and deep valvular incompetence in patients with deep venous insufficiency.
mesh_terms: D006801:Humans; D008209:Lymphedema / Q000503:physiopathology; D010690:Phlebography; D005082:Physical Exertion; D011152:Popliteal Vein / Q000503:physiopathology; D014463:Ultrasonography; D014636:Valsalva Maneuver; D014680:Veins / Q000503:physiopathology; D014689:Venous Insufficiency / Q000145:classification / Q000503:physiopathology*; D014690:Venous Pressure