TY - JOUR T1 - Perspectives JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 191 LP - 191 DO - 10.3174/ajnr.P0087 VL - 41 IS - 2 AU - Manfred Hauben Y1 - 2020/02/01 UR - http://www.ajnr.org/content/41/2/191.abstract N2 - ER -