1. Department of General, Thoracic, Vascular, and Visceral Surgery Greifswald University Medical Center 17475 Greifswald Germany
2. ZIK plasmatis Leibniz Institute for Plasma Science and Technology (INP) 17489 Greifswald Germany
3. Cancer Research Unit Boehringer Ingelheim Vienna 1121 Austria
4. Department of Neurosurgery Wien University Medical Center Vienna 1090 Austria
5. Laboratory of Molecular Pathology State University of Londrina Londrina 86051‐990 Brazil
6. Clinic for Dermatology and Venerology Rostock University Medical Center 18057 Rostock Germany