1. Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, 25123 Brescia, Italy
2. Department of Civil and Environmental Engineering, Tufts University, Medford, MA 02155, USA
3. Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
4. Allen Discovery Center, Tufts University, Medford, MA 02155, USA