Frequency and distribution of the valves in the large deep and superficial veins of the lower limb in the aged.
D000368:Aged; D005260:Female; D005268:Femoral Vein / Q000033:anatomy & histology; D005360:Fibula / Q000098:blood supply; D006801:Humans; D007866:Leg / Q000098:blood supply*; D008297:Male; D008875:Middle Aged; D011152:Popliteal Vein / Q000033:anatomy & histology; D012501:Saphenous Vein / Q000033:anatomy & histology; D013977:Tibia / Q000098:blood supply; D014680:Veins / Q000033:anatomy & histology*