1. Introduction : de-territorialization versus justice contained 2. Theorizing implementation processes of ECJ rulings 3. Conceptualizing the ECJ's integration function 4. ECJ jurisprudence on patient mobility 5. Implementing the Kohll/Decker jurisprudence : the overall picture in EU member states 6. The case of France 7. The case of Germany 8. The case of the United Kingdom (England and Wales) 9. Fine-tuning doctrines by the ECJ : judicial activism and self-restraint? 10. The European commission : enforcement and alternative management strategies 11. Making sense of implementation 12. Conclusion : five lessons.