title: Token-economy programmes with chronic psychotic patients: the importance of direct measurement and objective evaluation for long-term maintenance.
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D002908:Chronic Disease; D006801:Humans; D008875:Middle Aged; D011618:Psychotic Disorders / Q000534:rehabilitation*; D013997:Time Factors; D014040:Token Economy