President, Association of University Cardiologists, 2006–2007
Distinguished Fellow (elected), International Atherosclerosis Society, 2006–
Councillor/Vice President, Association of University Cardiologists, 2003–2006
Honorary Member, British Cardiac Society, 2005–
Honorary Member (elected), British Atherosclerosis Society, 1998–
Member - Society for Vascular Medicine and Biology, 1997–
Member - Association of American Physicians, 1996–
Member - North American Vascular Biology Organization, 1993–
Steering Committee (1992–1994)
Chairman, Development Committee (1993–1998)
Councillor (1994–1996)
Member - American Association of Immunologists, 1990–
Member - American Society for Clinical Investigation, 1987
Fellow - American College of Cardiology, 1983
Member - American Physiological Society, 1983
Member - American Society for Cell Biology, 1978