1. Department of Ophthalmology and Visual Sciences University of Alabama at Birmingham Birmingham Alabama USA
2. School of Public Health University of Alabama Birmingham Birmingham Alabama USA
3. Department of Clinical & Diagnostic Sciences University of Alabama at Birmingham Birmingham Alabama USA
4. Department of Biology University of Alabama at Birmingham Birmingham Alabama USA
5. Redline Performance Solutions, Ames Research Center National Aeronautics and Space Administration Moffett Field California USA
6. Division of Ophthalmology and Department of Surgery Alpert Medical School of Brown University Providence Rhode Island USA
7. Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine Alpert Medical School of Brown University Providence Rhode Island USA
8. Department of Diagnostic Imaging, Alpert Medical School of Brown University Rhode Island Hospital Providence Rhode Island USA
9. Low Gravity Exploration Technology, Research, and Engineering Directorate, John Glenn Research Center National Aeronautics and Space Administration Cleveland Ohio USA
10. Department of Medicine, Division of Pulmonary Critical Care, Occupational and Sleep Medicine Indiana University Indianapolis Indiana USA
11. Department of Anatomy, Cell Biology & Physiology Indiana University Indianapolis Indiana USA
12. Richard L. Roudebush VA Medical Center Indianapolis Indiana USA
13. Department of Health Services, Policy and Practice Brown University School of Public Health Providence Rhode Island USA