1. Investigation of patients with deep vein thrombosis and chronic venous insufficiency;Nicolaides,1991
2. Venous plethysmography applied in pathologic conditions;Boccalon;Angiology,1981
3. Measurement of change in human limb volume by means of a mercury in rubber strain gauge;Whitney;J. Physiol.,1949
4. Peripheral vascular disease. Diagnosis and objective evaluation using a mercury strain gauge;Strandness;Ann. Surg.,1965
5. Non invasive tests in the diagnosis and management of thromboembolic disease;Sumner;Surg. Annu.,1986