title: Asthenia and the chronic fatigue syndrome.
authors.forename: R B
authors.initials: RB
authors.lastname: Layzer
mesh_terms: D001247:Asthenia / Q000145:classification / Q000503:physiopathology*; D015673:Fatigue Syndrome, Chronic / Q000145:classification / Q000503:physiopathology*; D006801:Humans