‘Bonjour Herr Doctor’: National Healthcare Systems, the Internal Market and Cross-border Medical Care within the European Union - Legal Issues of Economic Integration View ‘Bonjour Herr Doctor’: National Healthcare Systems, the Internal Market and Cross-border Medical Care within the European Union by - Legal Issues of Economic Integration ‘Bonjour Herr Doctor’: National Healthcare Systems, the Internal Market and Cross-border Medical Care within the European Union 33 2 Legal Issues of Economic Integration