1. Pulmonary, Critical Care, and Sleep Medicine, Veterans Administration (VA) Greater Los Angeles Health Care System, Los Angeles, California
2. Department of Medicine, University of California, Los Angeles, Los Angeles, California
3. Measurement Science Quality Enhancement Research Initiative, San Francisco VA Health Care System, San Francisco, California
4. Department of Medicine, University of California, San Francisco, San Francisco, California
5. Sleep Medicine Program and Pulmonary Section, VA Pittsburgh Health Care System, Pittsburgh, Pennsylvania
6. Division of Pulmonary, Allergy, Critical Care Medicine, University of Pittsburgh Medical Center, University of Pittsburgh, Pittsburgh, Pennsylvania
7. VA Portland Health Care System, Portland, Oregon
8. Department of Otolaryngology, Oregon Health & Science University, Portland, Oregon
9. Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, Oregon
10. Sleep Medicine and Epilepsy Program, VA Portland Health Care System, Portland Oregon
11. VA Specialty Care Program Office (11SPEC)
12. Pulmonary, Critical Care, and Sleep Medicine, San Francisco VA Health Care System, San Francisco, California