title: Role of urea in the hyperammonemia of germ-free Eck fistula dogs.
mesh_terms: D000641:Ammonia / Q000097:blood*; D000818:Animals; D001806:Blood Urea Nitrogen; D004064:Digestive System / Q000201:enzymology; D004285:Dogs; D005260:Female; D005856:Germ-Free Life; D006501:Hepatic Encephalopathy / Q000209:etiology; D006868:Hydrolysis; D008297:Male; D011167:Portacaval Shunt, Surgical; D014508:Urea / Q000008:administration & dosage / Q000378:metabolism*; D014510:Urease / Q000378:metabolism
chemical_list: D000641:Ammonia; D014508:Urea; D014510:Urease