1. Biomedical Engineering Department Amirkabir University of Technology (Tehran Polytechnic) Hafez Tehran 15875‐4413 Iran
2. Department of Life Science Engineering University of Applied Sciences Technikum Wien Höchstädtplatz 6 Vienna 1200 Austria
3. Ludwig Boltzmann Institute for Experimental and Clinical Traumatology AUVA Research Center Donaueschingenstrasse 13 Vienna 1200 Austria