1   Department General Internal Medicine, Hirslanden Klinik Beau-Site, Bern, Switzerland (Ringgold ID: RIN30373)

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2   Department of Internal Medicine II – Gastroenterology and Hepatology, Center of Advanced Research in Gastroenterology and Hepatology, "Victor Babeș" University of Medicine and Pharmacy Timișoara, Timisoara, Romania

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3   Department of Hematology, Oncology and Palliative Care, University Hospital Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg, Germany (Ringgold ID: RIN477107)

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4   Department of Medicine, University of South Carolina School of Medicine, Columbia, United States (Ringgold ID: RIN12322)

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5   Anesthesiology and Intensive Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany (Ringgold ID: RIN14903)

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6   Department of Ultrasound, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China (Ringgold ID: RIN91603)

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7   Inselgruppe, Spital Tiefenau, Bern, Switzerland (Ringgold ID: RIN60529)

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8   Justus-Liebig-Universität, Giessen, Germany

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9   Emergency, Fiona Stanley Hospital, Murdoch, Australia (Ringgold ID: RIN418838)

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10   Medicine, Witten/Herdecke University, Witten, Germany (Ringgold ID: RIN12263)

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11   Emergency Medicine, Beth Israel Deaconess Medical Center, Boston, United States

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12   Klinik für Innere Medizin, Krankenhaus Märkisch Oderland Strausberg/ Wriezen, Wriezen, Germany

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13   Clinic for Gastroenterology, Hepatology and Infectious Diseases, Universitätsklinikum Düsseldorf, Dusseldorf, Germany (Ringgold ID: RIN39064)

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14   Department of Internal Medicine, Division of Gastroenterology, Leipzig University Medical Center, Leipzig, Germany (Ringgold ID: RIN39066)

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15   Medicine, Medizinische Hochschule Brandenburg Theodor Fontane, Neuruppin, Germany (Ringgold ID: RIN477107)

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16   Department of Internal Medicine, Hirslanden Hospital Group, Bern, Switzerland (Ringgold ID: RIN60319)

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17   Outpatient Department of Gastroenterology, IBD center, Policlinic Helios Klinikum Buch, Berlin, Germany

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18   Gastroenterology, Sana Hospital Lichtenberg, Berlin, Germany (Ringgold ID: RIN40656)

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19   Clinic of Internal Medicine III Department of Oncology, Hematology, Rheumatology and Clinical Immunology, University Hospital Bonn, Bonn, Germany (Ringgold ID: RIN39062)

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20   Department of Internal Medicine and Gastroenterology, Brandenburg Medical School Theodor Fontane, Neuruppin, Germany

21   Faculty of Health Science Brandenburg, Brandenburg Medical School Theodor Fontane, Neuruppin, Germany (Ringgold ID: RIN477107)

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22   Emergency Medicine, The Ohio State University Wexner Medical Center, Columbus, United States (Ringgold ID: RIN12306)

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23   Abteilung für Allgemeine Radiologie und Kinderradiologie, Medizinische Universität Wien, Wien, Austria

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24   Department of Obstetrics and Gynecology, Universitätsklinikum Bonn, Bonn, Germany

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8   Justus-Liebig-Universität, Giessen, Germany

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25   Medicine, Technische Universität Dresden, Dresden, Germany (Ringgold ID: RIN9169)

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26   Medicine, Otto-von-Guericke-Universität Magdeburg, Magdeburg, Germany (Ringgold ID: RIN9376)

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27   Rudolf-Frey Teaching Department, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany (Ringgold ID: RIN39068)

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28   School of Dentistry & Health Sciences, Charles Sturt University Australia, Wagga Wagga, Australia

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29   CZMH Medical Physics and Dosimetry Services LTD, Limassol, Cyprus