1. University of Kaiserslautern, Kaiserslautern, Germany
2. University of Bremen, Bremen, Germany
3. Fraunhofer MEVIS and Otto-von-Guericke University Magdeburg, Magdeburg, Germany
4. Fraunhofer MEVIS, Bremen, Germany
5. University of Bremen, Fraunhofer MEVIS, Harvard Medical School, and Brigham and Women’s Hospital, Boston, MA