1. Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
2. Department of Civil Engineering, University of Texas at El Paso, El Paso, Texas, USA
3. Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
4. Department of Biostatistics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
5. Interdisciplinary Health Science Ph.D. Program, College of Health Sciences, The University of Texas, El Paso, TX, USA
6. Centro de Investigación y Desarrollo Tecnológico, Tecnológico de Monterrey, Campus Ciudad Juárez, Ciudad Juárez, Chihuahua, Mexico