RT Journal Article SR Electronic T1 Similar Safety in Centers with Low and High Volumes of Endovascular Treatments for Unruptured Intracranial Aneurysms: Evaluation of the Analysis of Treatment by Endovascular Approach of Nonruptured Aneurysms Study JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A1999 A1 L. Pierot A1 L. Spelle A1 F. Vitry, YR 2010 UL http://www.ajnr.org/content/early/2010/01/21/ajnr.A1999.abstract AB