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Pedigrees of two cases with epilepsy-aphasia disorders and identified GRIN2A mutations: (a) Filled-in circles indicate individuals with Landau-Kleffner syndrome; empty circles/squares indicate unaffected women/men. Arrows indicate the probands. Individuals with the GRIN2A mutation are indicated by m/+, and mutation-negative individuals are indicated by +/+. (b) Chromatograms of GRIN2A mutation detected in two probands. Arrows show the position of the mutation.
