Diana C. Parra, Mariah Dreisinger, and Ross C. Brownson are with the George Warren Brown School of Social Work, Washington University in St. Louis, St. Louis, MO. Thomas L. McKenzie is with the School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA. Isabela C. Ribeiro is with the Air Pollution and Respiratory Health Branch, Centers for Disease Control and Prevention, Atlanta, GA. Adriano A. Ferreira Hino is with the Pontifícia Universidade Católica do Paraná, Curitiba,... (At 2010-08)