1. Department of Cardiology; Hospital de la Santa Creu i Sant Pau, Autonomous University of Barcelona; Barcelona Spain
2. Department of Electronic Engineering; Universitat Politecnica de Catalunya; Barcelona Spain
3. Department of Pathology; Hospital de la Santa Creu i Sant Pau, Autonomous University of Barcelona; Barcelona Spain
4. Department of Cardiac Surgery; Hospital de la Santa Creu i Sant Pau, Autonomous University of Barcelona; Barcelona Spain