title: A comparative study of four forms of psychotherapy.
mesh_terms: D000293:Adolescent; D000328:Adult; D003362:Cost-Benefit Analysis; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000628:therapy; D008875:Middle Aged; D011613:Psychotherapy / Q000379:methods*; D011614:Psychotherapy, Brief / Q000379:methods; D011615:Psychotherapy, Group / Q000379:methods