| http://www.w3.org/ns/prov#value | - In this study, 10 out of 1,648 subjects were found to have CFS, so the point prevalence of CFS was 0.6% (95% CI 0.2-1.0%) and only 7.2% of CF patients had CFS. We speculate that CFS was distinguished from most CF by the uncertainty of its cause and several characteristic symptoms including fatigue.
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