1. Medicine Section, Department of Biochemistry, University of Pavia, Pavia, Italy.
2. Center for Tissue Engineering (C.I.T), Pavia, Italy.
3. Department of Experimental Medicine, University of Pavia, Pavia, Italy.
4. Department of Physical Chemistry, University of Pavia, Pavia, Italy.
5. Department of Computer and Systems Science, University of Pavia, Pavia, Italy.
6. Lima-Lto S.p.A., Lima Group, Villanova di San Daniele del Friuli, Italy.