RT Journal Article SR Electronic T1 Are Cervical Nerve Root Blocks “Safe and Effective”? JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 2434 OP 2435 VO 26 IS 9 A1 Santiago-Palma, Juan A1 Vallejo, Ricardo A1 Kornick, Craig A1 Barna, Steven YR 2005 UL http://www.ajnr.org/content/26/9/2434.abstract AB