1. University of Copenhagen , Copenhagen , Denmark
2. HITS gGmbH , Heidelberg , Germany
3. Forschungszentrum Jülich GmbH , Project Management Jülich , Jülich , Germany
4. Karolinska Institutet , Solna , Sweden
5. German Institute for Standardization , Berlin , Germany
6. Medical Informatics Laboratory , Institute for Community Medicine, University Medicine Greifswald , Greifswald , Germany