title: Chronic fatigue syndrome: still a long way to go.
authors.forename: Amos
authors.initials: A
authors.lastname: Etzioni
mesh_terms: D035843:Biomedical Research; D015673:Fatigue Syndrome, Chronic / Q000209:etiology*; D006801:Humans; D012107:Research Design; D058008:Xenotropic murine leukemia virus-related virus