1. Sana-Klinikum Lichtenberg, Berlin, Germany
2. Interdisciplinary Centre of Ultrasound Diagnostics, Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology, Philipps University Marburg, Marburg, Germany
3. Zhongshan Hospital Fudan University, Shanghai, China
4. Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
5. Allgemeine Innere Medizin (DAIM) Kliniken Beau Site, Salem und Permanence, Kliniken Hirslanden Beau Site, Salem und Permanence, Bern, Switzerland