TY - JOUR T1 - Advances and Technical Standards in Neurosurgery, Vol. 32 JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - e13 LP - e13 DO - 10.3174/ajnr.A1087 VL - 30 IS - 1 A2 - , Y1 - 2009/01/01 UR - http://www.ajnr.org/content/30/1/e13.abstract N2 - ER -