María Angeles Pérez1,2,3. 1. Multiscale in Mechanical and Biological Engineering, Department of Mechanical Engineering, Universidad de Zaragoza, Zaragoza, Spain. angeles@unizar.es. 2. Aragón Institute of Engineering Research, Zaragoza, Spain. angeles@unizar.es. 3. Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain. angeles@unizar.es.