1 Alfredo Morabia is the Editor-in-Chief of AJPH. He is also with the Barry Commoner Center for Health and the Environment, Queens College, CUNY, Flushing, NY, and the Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY. Moyses Szklo is the Editor-in-Chief of the American Journal of Epidemiology. He is also with the Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD. Roger Vaughan is an Associate Editor of AJPH. He is also with the Department of Biostatistics, Mailman School of Public Health, Columbia University.