title: Defining outcome.
authors.affiliation: Department of Psychological Medicine, Glasgow, Scotland.
authors.forename: N
authors.initials: N
authors.lastname: Brooks
mesh_terms: D015998:Abbreviated Injury Scale; D000203:Activities of Daily Living; D001925:Brain Damage, Chronic / Q000534:rehabilitation*; D001930:Brain Injuries / Q000534:rehabilitation*; D005500:Follow-Up Studies; D006801:Humans; D015983:Selection Bias