RT Journal Article SR Electronic T1 Atraumatic Lumbar Puncture JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 175 OP 176 VO 23 IS 1 A1 Wolpert, Samuel M. YR 2002 UL http://www.ajnr.org/content/23/1/175.abstract AB