PT - JOURNAL ARTICLE AU - R.K. Gupta TI - Reply: AID - 10.3174/ajnr.A2174 DP - 2010 Jun 25 TA - American Journal of Neuroradiology 4099 - http://www.ajnr.org/content/early/2010/06/25/ajnr.A2174.short 4100 - http://www.ajnr.org/content/early/2010/06/25/ajnr.A2174.full