PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9049185-9 1997 Increased expression of Ha-ras was evident in some spontaneous B6C3F1 liver tumors and in most of the PB-induced liver tumors. Phenobarbital 102-104 Harvey rat sarcoma virus oncogene Mus musculus 24-30