1. Specialist Trainee in the Electrophysiology Department, The Barts Heart Centre, St Bartholomew's Hospital, London
2. Consultant in the Electrophysiology Department, The Barts Heart Centre, St Bartholomew's Hospital, London
3. Consultant Cardiologist and Electrophysiologist in the Electrophysiology Department, The Barts Heart Centre, St Bartholomew's Hospital, London EC1A 7BE