Court of Justice (Grand Chamber) 12 April 2005, C-145/03 (Heirs of Annette Keller v Instituto Nacional de la Seguridad Social (INSS) and Instituto Nacional de Gestión Sanitaria (Ingesa).)

Parties Grounds Operative part Parties In Case C‑145/03, REFERENCE for a preliminary ruling under Article 234 EC, made by the Juzgado de lo Social n° 20 de Madrid (Spain), by decision of 6 November 2001, received at the Court on 31 March 2003, in the proceedings Heirs of Annette Keller v Instituto Nacional de la Seguridad Social (INSS), Instituto Nacional de Gestión Sanitaria (Ingesa), formerly