PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 14507971-6 2003 Alternatively, if ACe damage selectively interferes with CR formation, maintenance, or expression, then both freezing and USV should be blocked or impaired when elicited as CRs during acquisition and retention testing but spared when evoked as unconditional responses (URs) to ejaculation. Peptichemio 269-272 angiotensin I converting enzyme Rattus norvegicus 18-21