1 Internal Medicine, Saarland University Medical Center, Kirrberger Straße, 66421, Homburg, Saar, Germany.
2 Institute of Legal Medicine, Saarland University Medical Center, Kirrberger Straße, 66421, Homburg, Saar, Germany.
3 Institute of Anatomy and Cell Biology, Saarland University Medical Center, Kirrberger Straße, 66421, Homburg, Saar, Germany. thomas.tschernig@uks.eu.
4 Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA.