1. Audiology and Speech-Language Sciences, University of Northern Colorado, Greeley, CO, USA;
2. Occupational and Environmental Health, Colorado State University, Fort Collins, CO, USA;
3. Center for Health, Work and Environment, Colorado School of Public Health, University of Colorado, Aurora, CO, USA;
4. Colorado Consortium on Climate Change and Human Health, University of Colorado, Aurora, CO, USA;
5. Department of Environmental and Occupational Health, University of Colorado, Aurora, CO, USA;
6. School of Medicine, University of Colorado, Aurora, CO, USA;
7. Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA;
8. Occupational Medicine, Pantaleon Guatemala, Escuintla, Guatemala