1. Departments of Environmental Health Pulmonary Medicine and Internal Medicine, University of Cincinnati, Cincinnati, OH, USA;
2. Department of Rehabilitation Sciences, University of Cincinnati, Cincinnati, OH, USA;
3. Department of Environmental Health, University of Cincinnati, Cincinnati, OH, USA;
4. Department of Radiology, University of Cincinnati, Cincinnati, OH, USA;
5. University of Wisconsin School of Medicine and Public Health, Madison, WI, USA;
6. Mercy Health-Anderson Hospital, Cincinnati, OH, USA