title: [Graded exercise therapy can have harmful effects].
authors.forename: Frank N M
authors.initials: FN
authors.lastname: Twisk
authors.forename: Michael
authors.initials: M
authors.lastname: Maes
authors.forename: Lillian
authors.initials: L
authors.lastname: Festvåg
mesh_terms: D005081:Exercise Therapy / Q000009:adverse effects*; D015673:Fatigue Syndrome, Chronic / Q000523:psychology / Q000628:therapy*; D006801:Humans; D011788:Quality of Life; D016896:Treatment Outcome