[1] Univ Hosp Erlangen, Internal Med 1, Erlangen, Germany
[2] Dist Hosp Ebersberg, Dept Internal Med, Ebersberg, Germany
[3] Municipal Hosp Steinenberg, Dept Internal Med 1, Reutlingen, Germany
[4] Waldklinikum Gera gGmbH, Municipal Hosp, Dept Gastroenterol, Gera, Germany
[5] Municipal Hosp Trier Barmherzige Bruder, Cent Interdisciplinary Ultrasound, Trier, Germany
[6] Univ Hosp Leipzig, Dept Gastroenterol, Cent Ultrasound Unit, Leipzig, Germany
[7] Univ Hosp Regensburg, Dept Internal Med 1, Regensburg, Germany
[8] Univ Hosp Mainz, Dept Internal Med 1, Mainz, Germany
[9] Municipal Hosp Schwarzwald Baar, Dept Internal Med 1, Villingen Schwenningen, Germany
[10] Ruppiner Kliniken, Dist Hosp, Gastroenterol, Dept Internal Med B, Neuruppin, Germany
[11] Municipal Hosp Caritas, Dept Internal Med 2, Bad Mergentheim, Germany
[12] Sana Kliniken Lubeck GmbH, Municipal Hosp, Dept Internal Med Gastroenterol, Lubeck, Germany
[13] Univ Hosp Dresden, Surg, Dresden, Germany
[14] Univ Hosp Frankfurt, Dept Internal Med 1, Frankfurt, Germany
[15] Karl Olga Krankenhaus, Municipal Hosp, Dept Internal Med 1, Stuttgart, Germany
[16] Dist Hosp Helfenstein, Dept Internal Med, Geislingen, Germany
[17] Krankenhaus Markisch Oderland GmbH, Dist Hosp, Dept Internal Med, Wriezen, Germany
[18] Municipal Hosp Katharinen, Dept Med & Gastroenterol, Stuttgart, Germany
[19] SRH Kliniken Sigmaringen, Dist Hosp, Innere Med, Sigmaringen, Germany
[20] Dist Hosp Rems Murr, Dept Interal Med & Gastroenterol, Winnenden, Germany
[21] Hosp St Hedwig, Depatment Internal Med, Berlin, Germany
[22] Israeli Hosp, Dept Internal Med, Hamburg, Germany
[23] Hosp Vivantes Humboldt, Gastroenterol, Berlin, Germany
[24] Dist Hosp Helios, Dept Med & Gastroenterol 2, Meiningen, Germany
[25] Dist Hosp Gummersbach, Dept InternalMedicine, Gummersbach, Germany
[26] Hosp Albertinen, Dept Internal Med, Hamburg, Germany
[27] St Josefs Hosp Helios, Gastroenterol, Bochum, Germany
[28] Municipal Hosital Duren, Dept Internal Med 2, Duren, Germany
[29] Hosp Leonberg, Dept Internal Med, Leonberg, Germany
[30] Dist Hosp Kothen, Dept Internal Med, Kothen, Germany
[31] Univ Hosp Munich, Munich, Germany