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Researchers from the University Medical Center Groningen developed the Chronic Fatigue Syndrome (CFS) diagnostic score for adult participants using the Fatigue (CDC) variables from 2A Questionnaire 2 and 3A Questionnaire 1. (sections: Diseases & symptoms (Fatigue (CDC)) and secondary & linked variables).
The CFS diagnostic score can be requested in the Lifelines catalogue or by mail (data@lifelines.nl).