It is good to walk . Rebuilding and designing cities to make physical activity normal, safe and pleasant, with special focus on Colombia and Brazil
Luis Fernando Gomez, Senior Officer1 and Enrique Jacoby, MD MPH2
(1)Pontificia Universidad Javeriana, Bogota, Colombia, (2)Pan American Health Organization, Washington D.C., DC
(1)Pontificia Universidad Javeriana, Bogota, Colombia, (2)Pan American Health Organization, Washington D.C., DC