1. Departments of Applied Sciences and Pathology, CBSET, Lexington, MA 02421, USA.
2. Biosense Webster Inc., a Johnson & Johnson Company, Irwindale, CA 91765, USA.
3. Department of Internal Medicine III, Saarland University, Homburg/Saar 66421, Germany.
4. Institute for Medical Engineering and Science, MIT, Cambridge, MA 02139 , USA.
5. Brigham and Women’s Hospital, Boston, MA 02115, USA.