PT - JOURNAL ARTICLE AU - Gress, Daryl R. TI - Aging and Dementia: More Gray Hair and Less Gray Matter DP - 2001 Oct 01 TA - American Journal of Neuroradiology PG - 1641--1642 VI - 22 IP - 9 4099 - http://www.ajnr.org/content/22/9/1641.short 4100 - http://www.ajnr.org/content/22/9/1641.full SO - Am. J. Neuroradiol.2001 Oct 01; 22