RT Journal Article SR Electronic T1 Reduced Cortical Folding in Mental Retardation JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A1984 A1 Y. Zhang A1 Y. Zhou A1 C. Yu A1 L. Lin A1 C. Li A1 T. Jiang YR 2010 UL http://www.ajnr.org/content/early/2010/01/14/ajnr.A1984.abstract AB