1. Division of Cardiovascular Medicine, Departments of Anesthesia and Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
2. Laboratoire d'Informatique, Signaux et Systèmes de Sophia Antipolis (I3S), Université Nice Sophia Antipolis, CNRS, Nice, France
3. Fondazione Cardiocentro Ticino, University of Zurich, Lugano, Switzerland
4. Department of Physiology, New York Medical College, Valhalla, NY