1. Senior consultant cardiac surgeon Luzern Kantonsspital - Herzzentrum Spitalstrasse, 6000 Luzern 16, Switzerland. Military Deputy Head Aviation Medicine Swiss Air Force Aeromedical Centre, Dübendorf, Switzerland
2. Consultant Cardiologist & Electrophysiologist Central Military Hospital, Koblenz, Germany Colonel, Internal Medicine and Cardiology Air Force Centre of Aerospace Medicine Fürstenfeldbruck, Germany
3. Consultant Cardiologist Dept. of Cardiology, John Radcliffe Hospital, Oxford, UK