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Anatomy of the lower extremity venous system. (From Meissner MH. Pathophysiology of varicose veins and chronic venous insufficiency. In: Hallett JW, Mills JL, Earnshaw JJ, Reekers JA, eds. Comprehensive Vascular and Endovascular Surgery. 1st ed. Edinburgh: Mosby; 2004:571–589. Reprinted with permission.)
