PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9751390-12 1998 CONCLUSIONS: Our preliminary study reveals that there may be a role for captopril renography for detecting renin-angiotensin system mediated compensatory mechanisms in obstructive uropathy. Captopril 72-81 renin Homo sapiens 107-112