Background The lack of standardized criteria for defining chronic fatigue syndrome (CFS)
has constrained research. The objective of this study was to apply the 1994 CFS criteria by …

Rationale, aims and objectives The research community has for more than three decades
tried to unravel the diagnostic mystery that is Chronic Fatigue Syndrome (CFS). This has …

Abstract purpose: To report the prevalence, clinical features, and diagnostic associations of
the proposed chronic fatigue syndrome (CFS) in a cohort of patients with chronic fatigue and …

To determine whether patients diagnosed as having chronic fatigue syndrome (CFS)
constitute a clinically homogeneous class, multivariate statistical analyses were used to …

To determine the medical and psychiatric diagnoses that have an aetio‐logical role in
chronic fatigue we conducted a prospective study of 405 (65% women) patients who …

▪ A workshop was held 18 to 19 March 1991 at the National Institutes of Health to address
critical issues in research concerning the chronic fatigue syndrome (CFS). Case definition …

Background Chronic fatigue syndrome (CFS) presents a challenge for patients, health care
providers, and health insurance groups because of its incapacitating nature, unknown …

De Becker P, McGregor N, De Meirleir K (VUB, Vakgroep Interne Geneeskunde, Brussels,
Belgium; and University of Newcastle, Callaghan, New South Wales, Australia). A definition …

Background Psychological and immunologic factors both appear to contribute to chronic
fatigue syndrome (CFS). By comparing CFS with other disorders in which fatigue is a …

Objective: Chronic fatigue syndrome (CFS) case definitions agree that fatigue must be
unexplained, debilitating and present for at least 6 months, but they differ over …