Affiliation: | 1.Department of General and Visceral Surgery,Augusta Krankenanstalt, Academic Teaching Hospital, Ruhr-University Bochum,Germany;2.Department of Dermatology and Allergology,Ruhr-University Bochum,Germany;3.Department of Physiological Science,University of California Los Angeles (UCLA),USA;4.Department of Radiology, Augusta Krankenanstalt,Academic Teaching Hospital of the Ruhr-University Bochum,Germany |