1. University of Pavia,Department of Electrical, Computer and Biomedical Engineering,Pavia,Italy
2. Institute for Applied Microelectronics (IUMA), University of Las Palmas de Gran Canaria,Las Palmas de G.C.,Spain
3. Fraunhofer IMS,Smart Sensor Systemes,Duisburg,Germany
4. Fundacion Canaria Instituto de Investigacion Sanitaria de Canarias,Las Palmas de G.C.,Spain