1. Research Fellow.
2. Honorary Senior Lecturer.
3. Senior Lecturer, Department of Microbiology and Immunobiology.
4. Professor, Department of Clinical Biochemistry, The Queen’s University of Belfast.
5. Senior Clinical Scientist, Department of Clinical Chemistry, Belfast City Hospital, Belfast, Northern Ireland.
6. Consultant Cardiac Surgeon, Department of Cardiac Surgery, The Royal Group of Hospitals Trust, Belfast, Northern Ireland.
7. Senior Lecturer, Department of Anaesthetics and Intensive Care.