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[Dr. Ramón Pérez Cirera: Importance of his trajectory in Mexican pharmacology].

Dr. Ramón Pérez Cirera (1936-1982) arrived in Mexico from Spain in 1936. Since then, his links with compatriots abroad and their acquired preparation in Europe allows to contribute to Mexican Pharmacology. He participated in teaching and research; he formalized, presided and helped to structure the Department of Pharmacology of the Faculty of Medicine from the National Autonomous University of Mexico and promoted the training of specialized associations. He led the Section of Pharmacology in the National Academy of Medicine. Understanding the value of his contribution helps to visualize the growth and maturation of national Pharmacology.