Reproduced with permission from: Gorno-Tempini ML, Hillis AE, Weintraub S, et al. Classification of primary progressive aphasia and its variants. Neurology 2011; 76:1006. DOI:
10.1212/WNL.0b013e31821103e6. Copyright © 2011 American Academy of Neurology. Unauthorized reproduction of this material is prohibited.