1. Cochrane Austria, Department for Evidence-based Medicine and Evaluation; Danube University Krems Austria
2. Health center of the health insurance fund for civil servants, miners and employees of the federal railroads; Sitzenberg-Reidling Austria
3. Department of Surgical Oncology; The Maria Sklodowska-Curie National Research Institute of Oncology in Krakow; Krakow Poland
4. Department of Anatomy; Jagiellonian University Medical College; Krakow Poland
5. Department of Business; IMC University of Applied Sciences Krems; Krems Austria
6. General Practitioner; Dr. Robert Milla; Vienna Austria
7. Department of Clinical and Health Psychology, Faculty of Psychology; University of Vienna; Vienna Austria
8. Department of Biomedical Imaging and Image-guided Therapy, Division of Molecular and Gender Imaging; Medical University Vienna/General Hospital AKH; Vienna Austria
9. Research Triangle Institute (RTI) International; North Carolina USA