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An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
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Raised, 3D plaque modeled from a cropped section of Santiago Ramón y Cajal's renderings of the hippocampus. Courtesy of the Cajal Institute (Neuroscience Research Center of the Spanish Main Research Council) Producido con el permiso de El Instituto Cajal (IC), Consejo Superior de Investigaciones Científicas (CSIC)
by swanjere
by Erin Fincher
