oa South African Family Practice - Chronic fatigue syndrome : diagnosis and treatment : review article
Chronic fatigue syndrome (CFS) refers to marked and prolonged fatigue, for which no indentifiable cause can be found. Despite the presence of extensive symptoms, diagnosis is made when there is profound fatigue, lasting for a duration of six months, or longer. CFS is frequently seen in association with psychiatric illnesses,such as depression and anxiety, but has not been shown to be casually related to any particular psychiatric disease.
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