title: 13N-ammonia test and urea index in a patient with splenic vein obstruction and cirrhosis of the liver.
mesh_terms: D000328:Adult; D000641:Ammonia; D006801:Humans; D006975:Hypertension, Portal / Q000175:diagnosis; D008102:Liver Circulation; D008103:Liver Cirrhosis / Q000150:complications*; D008297:Male; D009590:Nitrogen Radioisotopes; D013162:Splenic Vein; D014508:Urea; D014652:Vascular Diseases / Q000175:diagnosis*
chemical_list: D009590:Nitrogen Radioisotopes; D000641:Ammonia; D014508:Urea