1. Division of Plastic and Reconstructive Surgery (G.K.M., A.F., S.N., I.T., T.R.), 1090 Vienna, Austria
2. Department of Plastic, Reconstructive and Aesthetic Surgery (E.S.), The Medical University Innsbruck, 6020 Innsbruck, Austria
3. St. Vincent Hospital (R.K., H.M., J.H., H.R., C.M.), 1060 Vienna, Austria
4. Center for Pathophysiology, Infectiology and Immunology, The Medical University of Vienna, and Department of Statistics and Operations Research (A.B.), The University of Vienna, 1090 Vienna, Austria
5. Medical Department II, Academic Teaching Hospital of The Medical University of Vienna, and Karl Landsteiner Institute for Gastroenterology and Rheumatology (H.R.), 1060 Vienna, Austria
6. Department of Surgery, and Department of Pathophysiology and Allergy Research (P.P.), 1090 Vienna, Austria