Antenne cantonale de Neuchâtel Trisomie 21 ART 21 – consulter le site www.t21.ch is a self-help group in consulter le site www.t21.ch, Switzerland, for relatives of people with Down syndrome. Language: French. Contact through Info-Entraide Neuchâtel Jura, 032 724 06 00, info@infoentraideneju.ch. Source: Selbsthilfe Schweiz, the national database of self-help groups.