VENOUS COLLATERALS.
D003097:Collateral Circulation; D006801:Humans; D010827:Physiology; D014652:Vascular Diseases; D014680:Veins; D014682:Vena Cava, Inferior; D014684:Venae Cavae
COLLATERAL CIRCULATION; PHYSIOLOGY; VASCULAR DISEASES; VENA CAVA, INFERIOR