1. Division of Pulmonary and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, California
2. Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease at University of Pittsburgh Medical Center, and Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
3. Biobehavioral Health Science, College of Nursing, University of Illinois/Research Service, Hines Veterans Affairs Hospital, Chicago, Illinois
4. Sleep Disorders and Pulmonary Rehabilitation, Department of Medicine, University of California–San Francisco, San Francisco, California
5. Integrated Care Unit, Hospital Clinic de Barcelona/University of Barcelona, Barcelona, Spain
6. Interstitial Lung Disease Clinic, University of California–San Francisco, San Francisco, California
7. Hospice of the Valley, Phoenix, Arizona; and
8. College of Nursing, University of Colorado at Denver, Denver, Colorado