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1.
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Redescubrimiento de Axiniphyllum sagittalobum (Asteraceae) en la Sierra Madre del Sur y notas de las especies de este género que habitan en el estado de Guerrero, México González, A - Luna Vega, Mercedes Isolda - Villaseñor, JL
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2.
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Cellular immune response in the intestinal mucosa of rodents infected with Taenia solium adults. Aguilar-Vega, L - Avila , G - Yepez-Mulia, L - Flisser, A
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3.
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The sex of parabiotlc twins in Amphibia Burns, Robert Kyle
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4.
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The process of transformation in parabiotic Amblystoma. I. Transformation from female to male Burns, Robert Kyle
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5.
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Limb movements studied by electrical stimulation of nerve roots and trunks in Amblystoma Nicholas, JS - Barron, DH
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