title: The epidemiology of chronic fatigue syndrome.
authors.forename: S
authors.initials: S
authors.lastname: Wessely
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D015673:Fatigue Syndrome, Chronic / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D015995:Prevalence; D011379:Prognosis; D012959:Socioeconomic Factors; D013997:Time Factors