**Author details**

Raúl Alcaraz1\* and José Joaquín Rieta2

\*Address all correspondence to: raul.alcaraz@uclm.es

1 Innovation in Bioengineering Research Group, University of Castilla-La Mancha, Cuenca, Spain

2 Biomedical Synergy, Electronic Engineering Department, Universidad Politécnica de Valencia, Gandia, Spain
