PT - JOURNAL ARTICLE AU - Tu, N. AU - Bu, L. AU - Wu, G. TI - <em>Reply:</em> AID - 10.3174/ajnr.A6204 DP - 2019 Sep 01 TA - American Journal of Neuroradiology PG - E46--E47 VI - 40 IP - 9 4099 - http://www.ajnr.org/content/40/9/E46.short 4100 - http://www.ajnr.org/content/40/9/E46.full SO - Am. J. Neuroradiol.2019 Sep 01; 40