title: Portal and aortic blood sampling technique in unrestrained rats.
mesh_terms: D000596:Amino Acids / Q000378:metabolism; D000818:Animals; D001012:Aorta, Abdominal; D001800:Blood Specimen Collection / Q000295:instrumentation*; D002404:Catheterization / Q000295:instrumentation; D007408:Intestinal Absorption; D008297:Male; D011169:Portal Vein; D051381:Rats
chemical_list: D000596:Amino Acids