we tested the ability of phenobarbital and two liver carcinogens , acetoxime and 1-nitroso-5,6-dihydrouracil ( ndhu ) , to induce hyperplastic liver nodules ( hln ) in mrc-wistar and wistar rats , using a system that included a single diethylnitrosamine ( den ) treatment , partial hepatectomy , and administration of the test compound in drinking water for 8 weeks .
C0023884
liver
C0193398
partial hepatectomy