RT Journal Article SR Electronic T1 Physiologic changes during high field strength MR imaging. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1148 OP 1149 VO 8 IS 6 A1 F G Shellock YR 1987 UL http://www.ajnr.org/content/8/6/1148.abstract AB