1. Division of Pulmonary and Critical Care Medicine, Mayo Clinic , Rochester, MN , USA
2. The Mayo Clinic Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery , Rochester, MN , USA
3. Respiratory Health Equity Clinical Research Laboratory at Mayo Clinic , Rochester, MN , USA
4. Division of Public Health, Infectious Diseases, and Occupational Medicine, Mayo Clinic , Rochester, MN , USA
5. Plummer Libraries, Mayo Clinic , Rochester, MN , USA