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      <subfield code="a">Mejías-Pavón, C</subfield>
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      <subfield code="a">Rodríguez-Pinilla, Elvira</subfield>
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      <subfield code="a">Fernández-Martín, P</subfield>
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      <subfield code="a">Martínez-Frías, María Luisa</subfield>
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      <subfield code="a">Vitamin A plays a key role in many essential biological processes, such as the embryonic development, regulation of proliferation and diferentiation of many cell types. The present article reviews the biochemistry, metabolism and mode of action of retinoides (including vitamin A), as well as their role in the embryo development and their teratogenic effect on animal and human beings.</subfield>
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      <subfield code="a">Boletín del ECEMC: Rev Dismor Epidemiol 2007; V (nº 6): 44-52</subfield>
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      <subfield code="a">Vitamina A y embarazo: Revisión de la literatura y estimación del riesgo teratogénico</subfield>
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