PT - JOURNAL ARTICLE AU - Chapman, P. AU - Gupta, R. TI - Reply: AID - 10.3174/ajnr.A1230 DP - 2009 Jan 01 TA - American Journal of Neuroradiology PG - e3--e3 VI - 30 IP - 1 4099 - http://www.ajnr.org/content/30/1/e3.short 4100 - http://www.ajnr.org/content/30/1/e3.full SO - Am. J. Neuroradiol.2009 Jan 01; 30