1. Fatigue Consultation Clinic, Salt Lake City, UT, USA
2. Chronic Fatigue Initiative, New York, USA
3. Department of Epidemiology, Columbia University, New York, USA
4. Departments of Medicine and Clinical Immunology, Nova Southeastern University, Miami, FL, USA
5. Sierra Internal Medicine, Incline Village, NV, USA
6. Susan Levine, MD, Private Practice, New York, USA
7. Department of Psychology and Behavioral Medicine, University of Miami, Miami, FL, USA