Structural and functional changes in rat portal veins after experimental portal hypertension.
D000818:Animals; D006975:Hypertension, Portal / Q000473:pathology / Q000503:physiopathology*; D008026:Ligation; D009119:Muscle Contraction; D009130:Muscle, Smooth / Q000503:physiopathology; D011169:Portal Vein / Q000473:pathology / Q000502:physiology / Q000503:physiopathology; D051381:Rats