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  1. By: Rosas-Valdez, Rogelio - Pérez-Ponce de León, Gerardo.
    Type: Article
    In: Revista mexicana de biodiversidad
    Date: 2008-12-01
    Subjects: análisis de trazos  biogeografia  helmintos  Heptapteridae  huésped-parásito  Ictaluridae