1. Department of Biomedical Engineering, University of Houston, Houston, TX, USA
2. Department of Bioengineering, University of California at San Diego, La Jolla, CA, USA
3. Kibur Medical, Inc., Boston, MA, USA
4. Department of Physical Medicine and Re habilitation, Harvard Medical School, Boston, MA, USA
5. Department of Biomedical Research, Institute of Molecular Biology and Biotechnology, FORTH, Ioannina, Greece