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Supplemental Figure 1:Arx expression in the thalamus and hypothalamus during development. Images of in situ hybridization of Arx taken from the Allen Brain Atlas. A) Age e11.5 Image 9 of 16 from Experiment 100028589. B) Age e15.5 Image 9 of 18 from Experiment 100052721. C) Age e18.5 Image 10 of 15 from Experiment 100032155. The blue line outlines the hypothalamus and the red line outlines the thalamus. Arx is expressed in the thalamus and hypothalamus throughout development.