1. Division of Pulmonary Critical Care, and Sleep Medicine Department of Internal Medicine University of Nebraska Medical Center, College of Medicine Omaha Nebraska USA
2. VA Nebraska‐Western Iowa Health Systems Omaha Nebraska USA
3. Department of Biostatistics University of Nebraska Medical Center, College of Public Health Omaha Nebraska USA
4. University of Nebraska Medical Center, College of Allied Health Omaha Nebraska USA
5. Department of Environmental, Agricultural and Occupational Health University of Nebraska Medical Center, College of Public Health Omaha Nebraska USA
6. Department of Emergency Medicine University of Nebraska Medical Center, College of Medicine Omaha Nebraska USA
7. Division of Pulmonary Sciences and Critical Care Medicine Department of Medicine University of Colorado School of Medicine Aurora Colorado USA
8. Department of Neurological Sciences University of Nebraska Medical Center, College of Medicine Omaha Nebraska USA
9. Great Plains IDeA‐CTR Omaha Nebraska USA