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Mirta Roses Periago, Director
Donna Eberwine-Villagrán, Editor
Gilles Collette, Art Director
Bola Oyeleye, Graphic Designer
Paulo Leite, Web Designer
Armando Waak, Photographer
Articles do not necessarily represent the official viewpoint of the Pan American Health Organization. Letters and editorial queries should be addressed to the editor. Reprints: Articles reprinted with permission must carry the following credit line: "Reprinted from Perspectives in Health, the magazine of the Pan American Health Organization published in English and Spanish." Reprints must carry author's name and two copies must be sent to Perspectives in Health. © 2007 - All rights reserved