1. Khalifa University,Department of Biomedical Engineering,Abu Dhabi,United Arab Emirates
2. University of Aveiro,iBiMEd,Aveiro,Portugal
3. University of Aveiro,Department of Physics,Aveiro,Portugal
4. Instituto de Telecomunicações and University of Aveiro,Aveiro,Portugal
5. University of Lisbon,Instituto Superior Técnico,Department of Electrical and Computer Engineering and Instituto de Telecomunicações,Lisbon,Portugal