Joined Cases C-501/06 P, C-513/06 P, C-515/06 P and C-519/06 P: Judgment of the Court (Third Chamber) of 6 October 2009 — GlaxoSmithKline Services Unlimited, formerly Glaxo Wellcome plc (C-501/06 P), Commission of the European Communities (C-513/06 P), European Association of Euro Pharmaceutical Companies (EAEPC) (C-515/06 P), Asociación de exportadores españoles de productos farmacéuticos (Aseprofar) (C-519/09 P) v Commission of the European Communities, European Association of Euro Pharmaceutical Companies (EAEPC), Bundesverband der Arzneimittel-Importeure eV, Spain Pharma SA, Asociación de exportadores españoles de productos farmacéuticos (Aseprofar) (Appeals — Agreements, decisions and concerted practices — Restriction of parallel trade in medicines — Article 81(1) EC — Restriction of competition by object — National price regulations — Replacement of grounds — Article 81(3) EC — Contribution to promoting technical progress — Review — Burden of proof — Statement of reasons — Interest in bringing proceedings)