Joined Cases C-171/07 and C-172/07: Judgment of the Court (Grand Chamber) of 19 May 2009 (references for a preliminary ruling from the Verwaltungsgericht des Saarlandes — Germany) — Apothekerkammer des Saarlandes, Marion Schneider, Michael Holzapfel, Fritz Trennheuser, Deutscher Apothekerverband eV (C-171/07) and Helga Neumann-Seiwert (C-172/07) v Saarland and Ministerium für Justiz, Gesundheit und Soziales (Freedom of establishment — Article 43 EC — Public health — Pharmacies — Provisions restricting the right to operate a pharmacy to pharmacists alone — Justification — Reliability and quality of the provision of medicinal products to the public — Professional independence of pharmacists)