title: The effects of group-centered and nongroup-centered instruction on group cohesion of psychiatric patients.
mesh_terms: D000328:Adult; D006126:Group Processes; D006801:Humans; D006875:Hydrotherapy; D008297:Male; D001523:Mental Disorders / Q000628:therapy; D008875:Middle Aged; D011615:Psychotherapy, Group; D013550:Swimming