1. Center for Computational Medicine in Cardiology, Istituto Eulero, Università della Svizzera Italiana, 6900 Lugano, Switzerland.
2. Department of Mathematics and Computer Science, University of Basel, 4001 Basel, Switzerland.
3. Center for Computational Medicine in Cardiology, Istituto Eulero, Università della Svizzera Italiana, 6900 Lugano, Switzerland, and Faculty of Mathematics and Computer Science, UniDistance Suisse, 3900 Brig, Switzerland.