1. Department of Pharmaceutical Sciences, College of Pharmacy; University of Nebraska Medical Center; Omaha NE USA
2. Pulmonary and Critical Care Medicine Section, Department of Internal Medicine; University of Nebraska Medical Center; Omaha NE USA
3. Rehabilitation Clinical Trials Center; Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center; Torrance CA USA
4. Division of Pulmonary and Critical Care Medicine; Temple University; Philadelphia PA USA
5. Division of Pulmonary, Allergy, and Critical Care Medicine; University of Alabama Birmingham; AL USA
6. Lung Health Center University of Alabama Birmingham; Birmingham AL USA
7. Birmingham VA Medical Center; Birmingham AL USA
8. Division of Pulmonary, Critical Care, and Sleep Medicine; National Jewish Health; Denver CO USA
9. College of Public Health; University of Nebraska Medical Center; Omaha NE USA
10. Clinical Development Unit, Early Clinical Development; AstraZeneca; Cambridge UK