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  1. 1

    American Journal Diseases of Children : AJDC /

    Journal
  2. 2

    Archives of Pediatrics & Adolescent Medicine /

    Journal
  3. 3

    Actividades de detección y vigilancia para los trabajadores expuestos a polvos minerales /

    Published 1998
    Conference Proceeding Book
  4. 4

    Research on reproductive health at WHO : biennial report 2000-2001 /

    Published 2004
    Book
  5. 5

    La adolescencia /

    Published 1979
    Book