1. Pulmonary and Critical Care, University of Chicago Medical Center, Chicago, IL.
2. Pulmonary Medicine, MD Anderson Cancer Center, The University of Texas, Houston, TX.
3. Pulmonology, Northwest Permanente, Hillsboro, OR.
4. Pulmonary & Critical Care, University of Virginia, Charlottesville, VA.
5. Critical Care Medicine, Hawaii Permanente Medical Group, Honolulu, HI.