TY - JOUR T1 - Reply JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1384 LP - 1384 VL - 20 IS - 7 AU - Cheng-Yu Chen Y1 - 1999/07/01 UR - http://www.ajnr.org/content/20/7/1384.abstract N2 - ER -