1. Division of Pulmonary, Critical Care and Sleep Medicine, University of California, San Diego, San Diego, California;
2. Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts;
3. Division of Medical Informatics and
4. Division of Pulmonary Critical Care and Sleep Medicine, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas; and
5. Veterans Affairs Boston Healthcare System, West Roxbury, Massachusetts