1. Classification and Grading of chronic venous disease in the lower limbs. A consensus statement.;J Cardiovasc Surg (Torino),1997
2. 2002 Heart and Stroke Statistical Update.,2001
3. The significance of calf muscle pump function in venous ulceration.;Araki;J Vasc Surg,1994
4. Noninvasive quantitation of venous hemodynamics in the postphlebitic syndrome.;Barnes;Arch Surg,1973
5. Noninvasive quantitation of venous reflux in the postphlebitic syndrome.;Barnes;Surg Gynecol Obstet,1973