RT Journal Article SR Electronic T1 Intraoperative delineation of lesions in the sellar region with metrizamide. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 461 OP 464 VO 2 IS 5 A1 Banna, M A1 Schatz, S W YR 1981 UL http://www.ajnr.org/content/2/5/461.abstract AB