RT Journal Article SR Electronic T1 The Lumbar Multifidus Muscles are Affected by Medial Branch Interventions for Facet Joint Syndrome: Potential Problems and Proposal of a Pericapsular Infiltration Technique JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A2901 A1 J. Gossner YR 2011 UL http://www.ajnr.org/content/early/2011/11/03/ajnr.A2901.abstract AB