Julián Yáñez

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The distribution of cholinergic neurons and fibers was studied in the brain and rostral spinal cord of the brown trout and rainbow trout by using an antiserum against the enzyme choline(More)
The pineal organ of elasmobranchs is an elongated photoreceptive organ. In order to investigate the afferent and efferent connections of the pineal organ of two elasmobranchs, the skate (Raja(More)
The putative cholinergic and GABAergic elements of the pineal organ of lampreys were investigated with immunocytochemistry to choline acetyltransferase (ChAT) and γ-aminobutyric acid (GABA), and by(More)