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In cat four times as many lamina I neurons project to the parabrachial nuclei and twice as many to the periaqueductal gray as to the thalamus

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N CAT FOUR TIMES AS MANY LAMINA I NEURONS PROJECT O THE PARABRACHIAL NUCLEI AND TWICE AS MANY TO HE PERIAQUEDUCTAL

L. Mouton, J. Boers, E. Klop, 2005 .