Frieling Thomas
Dept. of Gastroenterology, Hepatology, Infectiology, Neurogastroenterology, Hematology, Oncology, and Palliative Medicine, HELIOS-Clinic Krefeld, Krefeld, Germany.
Endoscopy. 2021 Jan;53(1):98. doi: 10.1055/a-1194-4717. Epub 2020 Dec 17.