Affiliation: | aDepartment of Thoracic and Cardiovascular Surgery, University Medical Center, Georg-August-University Göttingen, Göttingen, Germany;bDepartment of Medical Statistics, University Medical Center, Georg-August-University Göttingen, Göttingen, Germany;cDepartment of Pathology, University Medical Center, Georg-August-University Göttingen, Göttingen, Germany |