Towards the perfect ARM center: the European Union's criteria for centers of expertise and their implementation in the member states. A report from the ARM-Net

Pediatric surgeons and patient organisations agree that fewer centers for anorectal malformations with larger patient numbers are essential to reach better treatment. The European Union transacts a political process which aims to realize such centers of expertise for a multitude of rare diseases. All the centers on a specific rare disease should constitute an ERN on that disease. ARM-Net members in different countries report on first experiences with the implementation of national directives, identifying opportunities and risks of this process.