[On the usefulness of courses for stutterers].
D000293:Adolescent; D000328:Adult; D002648:Child; D005859:Germany, East; D006801:Humans; D008297:Male; D000297:Psychology, Adolescent; D002666:Psychology, Child; D013070:Speech Therapy; D013342:Stuttering / Q000628:therapy*
Uber den Nutzen von Stotterekursen.