Visiting Professor, University of Westminster. Editor of Nosokinetics News. President of the UK Nosokinetics Group. Coined the word Nosokinetics in 1992 PhDthesis: Flow rate modelling: a method of comparing performance in departments of geriatric medicine. A past President of the British Geriatrics Society, he is in active retirement a Health Advisor to the National Pensioners Convention and co-supervisor of doctoral students modelling health care systems at the Universities of Ulster, Westminster and Adelaide. With over 120 publications on different aspects of modelling health and social care systems.