title: Non-invasive quantitative measurement of regurgitation in insufficiency of the superior saphenous vein by Doppler-ultrasound: a comparison with clinical examination and phlebography.
mesh_terms: D004301:Doppler Effect; D006801:Humans; D010690:Phlebography; D012501:Saphenous Vein / Q000503:physiopathology*; D014463:Ultrasonography; D014648:Varicose Veins / Q000503:physiopathology*