Idiopathic chronic fatigue and chronic fatigue syndrome: a comparison of two case-definitions.
Arpino C, Carrieri M, Valesini G, Pizzigallo E, Rovere P, Tirelli U, Conti F, Dialmi P, Barberio A, Rusconi N, Bosco O, Lazzarin A, Saracco A, Moro M, Vlahov D. Idiopathic chronic fatigue and chronic fatigue syndrome: a comparison of two case-definitions. Annali Dell Istituto Superiore Di Sanità 1999, 35: 435-41. PMID: 10721210.Peer-Reviewed Original ResearchConceptsChronic fatigue syndromeDefinition of CFSFatigue syndromeIdiopathic chronic fatigueNumber of patientsSymptoms of individualsAcute onsetSore throatSymptomatic onsetIdiopathic fatigueChronic fatigueInfectious processEligibility criteriaPatientsSyndromeSymptomsOnsetSignsLymphadenopathyPharyngitisFatigueCasesCriteriaIndividuals