RT Journal Article SR Electronic T1 CT-Guided Caudal Epidural Infiltrations: A Technical Note JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A7178 A1 Gossner, J. YR 2021 UL http://www.ajnr.org/content/early/2021/06/03/ajnr.A7178.abstract AB