“…It is imperative, therefore, to know the valve distribution in the vein from which grafts are sampled. Despite this clinical necessity, the distribution of valves in the great saphenous vein has not yet been intensively examined, and there are only a few reports in the literatures (Hasse and Schaack, 1911;Kampmeier and Birch, 1927;Basmajan, 1952;Takeuchi and Suma, 1981). The present study was performed to clarify the number and distribution of valves in the great saphenous vein from the malleolar level to the saphenofemoral junction.…”