Bello, M Venous ulceration and continuous flow in the long saphenous vein. [electronic resource] - European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery Feb 1999 - 111-4 p. digital Publication Type: Journal Article ISSN: 1078-5884 Standard No.: 10.1053/ejvs.1998.0714 doi Subjects--Topical Terms: Blood Flow VelocityHumansRetrospective StudiesSaphenous Vein--diagnostic imagingUltrasonography, Doppler, ColorVaricose Ulcer--diagnostic imaging