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  • 3
    Autores Jaimes Osma, Jesús Enrique
    Publicado 2000-07-01
    Descripción: ... sample of students. At the same time, an epidemiological viligance program qas developed, the name...
  • 6
    Autores Santacruz, María del Pilar
    Publicado 1998-07-01
    Descripción: ... injections), withdrawal syndrome with the same parame­ters, and long term persistence of pharmacological...
  • 9
    Autores Caballo, Vicente E., Prieto Comelin, Arturo
    Publicado 2002-01-01
    Descripción: ... significant posibility of change. The present  work exposes some of the  most relevant...
  • 10
    Autores Ramírez Herrera, Clemencia
    Publicado 2002-01-01
    Descripción: ...The purpose of the present article is to point out some of the main issues on the child abuse...
  • 17
    Descripción: .... Because there is several teaching and learning tech­nological tools, we just consider some rising computer...