1. Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Wien, Austria
2. Department of Medicine, University of South Carolina School of Medicine, Columbia, United States
3. Department of Medicine, Justus Liebig University Giessen, Giessen, Germany
4. Dean's office, Medical Faculty, University of Bern, Bern, Switzerland
5. Medical Department I/Gastroenterology, Sana Hospital Lichtenberg, Berlin, Germany
6. University Hospital Bonn, Bonn, Germany
7. Department of General Pediatrics and Neonatology, Saarland University Hospital and Saarland University Faculty of Medicine, Homburg, Germany
8. Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
9. Otto von Guericke University Magdeburg, Magdeburg, Germany
10. Rudolf Frey Teaching Department, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
11. School of Dentistry & Medical Sciences, Charles Sturt University, Bathurst, Australia
12. CZMH Limassol Medical Physics and Dosimetry Services Ltd, Lemesos, Cyprus
13. Allgemeine Innere Medizin (DAIM) Kliniken Beau Site, Salem und Permanence, Kliniken Hirslanden Beau Site, Salem und Permanence, Bern, Switzerland