This is a fascinating article because it demonstrates what a large percentage of people referred to the specialty fatigue clinics do not have CFS and then indicates what they did have. Forty percent did not have CFS. Twenty percent had undiagnosed sleep disorders, 15% psychiatric diagnoses and 47% another chronic disease. 15% percent remained undiagnosed. This indicates how important it is to get good sleep studies done - since many times those can be treated. Komaroff did a similar study but used EEG's to show that many of the people doctors thought had CFS did not - which indicates a couple of things....the doctors were missing alot of other diagnoses and they were often times trying to treat something (if they did try, that is), which the people did not have. I'd love to get this study and see what the alternative diagnoses were.