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(a) The femoral artery transection model. Two ligatures around the femoral artery (not the vein), before transection of the intervening segment. (b) The femoral/saphenous artery excision model. Upper ligature around the femoral artery, middle ligature around the popliteal/saphenous artery bifurcation, and the lower ligature around the saphenous artery. (c) The femoral/saphenous artery excision model, after excision of the femoral and saphenous arteries
