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. 2020 Jul 29;18:289. doi: 10.1186/s12967-020-02455-0

Fig. 1.

Fig. 1

Developmental timeline of ME/CFS case definitions and terminologies. ME/CFS myalgic encephalomyelitis and chronic fatigue syndrome, CDC Centers for Disease Control and Prevention, NICE National Institute for Health and Clinical Excellence, IOM Institute of Medicine, SEID systemic exertion intolerance disease. Case definition, a specific set of criteria used to define a disease for surveillance. Diagnostic criteria, guidance to indicate the presence of an illness (signs and symptoms, test results)