1. Sumner DS. Diagnosis of deep venous thrombosis. In: Rutherford RB, editor. Vascular surgery. Philadelphia: W.B. Saunders Company; 1995. p. 1698–743.
2. Sumner DS. Diagnosis of deep vein thrombosis by straingauge plethysmography. In: Bernstein EF, editor. Vascular diagnosis. St. Louis: C.V. Mosby; 1993. p. 811–9.
3. Barnes RW, Collicott PE, Sumner DS, et al. Noninvasive quantitation of venous hemodynamics in postphlebitic syndrome. Arch Surg. 1973;107:807.
4. Wheeler HB, Anderson FA Jr. Diagnosis of deep vein thrombosis by impedance plethysmography. In: Bernstein EF, editor. Vascular diagnosis. St. Louis: C.V. Mosby; 1993. p. 820–9.
5. Owens LV, Farber MA, Young ML. The value of air plethysmography in predicting clinical outcome after surgical treatment of chronic venous insufficiency. J Vasc Surg. 2000;32:961–8.