Table 1.

Title and abstract screening terms

Mitochondrial search terms (14 terms)	ME/CFS/SEID search terms (23 terms)
Mitochondria	Chronic fatigue syndrome
Mitochondrion	Myalgic encephalomyelitis
Mitochondrial contraction	Encephalomyelitis, myalgic
Contraction, mitochondrial	Chronic fatigue syndromes
Contractions, mitochondrial	Fatigue syndromes, chronic
Mitochondrial contractions	Chronic fatigue-fibromyalgia syndrome
Mitochondri*	Chronic fatigue fibromyalgia syndrome
Energy metabolism	Chronic fatigue-fibromyalgia syndromes
Pyruvate dehydrogenase	Fatigue-fibromyalgia syndrome, chronic
Electron transport chain	Fatigue-fibromyalgia syndromes, chronic
ATP	Postviral fatigue syndrome
ADP	Infectious mononucleosis-like syndrome, chronic
TCA cycle	Infectious mononucleosis like syndrome, chronic
Citric acid cycle	Royal free disease
	Chronic fatigue and immune dysfunction syndrome
	Chronic fatigue disorder
	Chronic fatigue disorders
	Fatigue disorder, chronic
	Fatigue disorders, chronic
	Systemic exertion intolerance
	Fatigue syndrome, postviral
	Fatigue syndromes, postviral
	Postviral fatigue syndromes