Stotternde – Bümpliz Süd is a self-help group in Bümpliz Süd, Switzerland, for people with stuttering. Language: German. Contact through Selbsthilfe BE - Beratungszentrum Bern, 0848 33 99 00, info@selbsthilfe-be.ch. Source: Selbsthilfe Schweiz, the national database of self-help groups.