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Cover: Neuronal pathways in BrainBow mice. Neurons in the hippocampus, a brain area involved in memory, are labeled in different colors, with their neuronal outgoing projections pointing to the left. This is the first time so many different neurons have been separately visualized on such a large scale. Courtesy of Jean Livet, Joshua R. Sanes, and Jeff W. Lichtman, Harvard University, 2008.
Copyright 2009 by the National Academy of Sciences. All rights reserved.
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