1. Department of Bioengineering (DBE), Instituto Superior Técnico (IST), 1049-001 Lisbon, Portugal
2. Instituto de Engenharia de Sistemas e Computadores—Microsistemas e Nanotecnologias (INESC MN), 1000-029 Lisbon, Portugal
3. Instituto de Telecomunicações (IT), 1049-001 Lisbon, Portugal
4. Cardiology Department, Santa Maria University Hospital (CHLN), Lisbon Academic Medical Centre, 1649-028 Lisbon, Portugal
5. Cardiovascular Centre of the University of Lisbon, Lisbon School of Medicine, 1649-028 Lisbon, Portugal