Chronic fatigue syndrome comes of age.
Levine
P H
PH
Viral Epidemiology Branch, National Cancer Institute, Bethesda, Maryland, USA.
D003937:Diagnosis, Differential; D015673:Fatigue Syndrome, Chronic / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology; D006801:Humans; D012307:Risk Factors