1. Indivumed GmbH, Hamburg, Germany
2. Biorepositories and Biospecimen Research Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD
3. Arizona State University, Phoenix, AZ
4. Clinic for Hepatobiliary Surgery and Transplantation Surgery, University Hospital Hamburg Eppendorf, Hamburg, Germany
5. Clinic for General and Visceral Surgery and Clinic for Gastroenterology, Agaplesion Diakonieklinikum Hamburg, Hamburg, Germany
6. Surgical Clinic, Israelitisches Krankenhaus in Hamburg, Hamburg, Germany