Uniklinik Köln, Cologne, NRW, Germany
CTC North, Hamburg, Germany
GastroZentrum Lippe, Bad Salzuflen, Germany
Gastroenterologiepraxis Dr. Moog, Kassel, Hessen, Germany
Universitätsklinikum Leipzig, Leipzig, Sachsen, Germany
Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
University Hospital RWTH Aachen, Aachen, Germany
Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
University Clinic Hamburg-Eppendorf, Hamburg, Germany
University Medical Center Hamburg-Eppendorf, Hamburg, Germany
University Basel, Basel, Switzerland
University Hospital Marburg, Marburg, Germany
Charite University Berlin, Berlin, Germany
University Heart and Vascular Center Hamburg, Hamburg, Germany
University Medical Center Hamburg-Eppendorf, Hamburg, Germany