1. Blizard Institute Queen Mary University of London LondonU.K.
2. Istituto Auxologico Italiano IRCCS Center for Cardiac Arrhythmias of Genetic Origin Milan Italy
3. Institute of Cardiovascular Science University College London London U.K.
4. Department of Pathology and Dermatology Northwestern University Feinberg School of Medicine Chicago IL U.S.A.
5. Department of Cardiac Electrophysiology The Barts Heart Centre St Bartholomew's Hospital London U.K.
6. The Heart Centre Queen Mary University of London London U.K.