1. BioMark@ISEP-CEB/LABBELS, School of Engineering, Polytechnic of Porto, R. Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal
2. Department of Biomedical Engineering, Faculty of Science and Engineering, Swansea University, Swansea SA1 8EN, UK
3. BioMark@UC-CEB/LABBELS, Faculty of Sciences and Technology, University of Coimbra, R. Sílvio Lima, Pólo II, 3030-790 Coimbra, Portugal
4. REQUIMTE, School of Engineering, Polytechnic of Porto, Porto, R. Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal
5. ICETA, School of Engineering, Polytechnic of Porto, Porto, R. Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal