title: Extrahepatic portal hypertension in dogs produced with Boerema's instrument for slow ligation.
mesh_terms: D000818:Animals; D001794:Blood Pressure; D003097:Collateral Circulation; D004285:Dogs; D006975:Hypertension, Portal / Q000209:etiology*; D008102:Liver Circulation; D008722:Methods; D011169:Portal Vein / Q000601:surgery*; D013154:Spleen / Q000098:blood supply; D013525:Surgical Instruments