Multiple Sklerose – Bassersdorf und Effretikon is a self-help group in Bassersdorf und Effretikon, Switzerland, for people with multiple sclerosis. Language: German. Contact through Selbsthilfe Winterthur Schaffhausen, 052 213 80 60, info@selbsthilfe-winterthur-schaffhausen.ch. Source: Selbsthilfe Schweiz, the national database of self-help groups.