Stefan Timmermans is Associate Professor of Sociology at Brandeis University. His interests include death and dying, healthcare technologies and standardisation. He is the author of Sudden Death and the Myth of CPR (Temple, 1999) and co-author (with Marc Berg) of The Gold Standard: A Sociological Exploration of Evidence-Based Medicine and Standardization in Health Care (Temple, forthcoming). Jonathan Gabe is Reader of Social and Political Science at Royal Holloway, University of London. His research interests include health care organisation, chronic illness and mental health. He is the author of Going Private (with Michael Calnan and Sarah Cant) (Open University Press, 1993) and a number of edited collections including Medicine, Health and Risk (Blackwell, 1995), Health and Sociology of Emotions (with Veronica James) (Blackwell, 1996) and Theorising Health, Medicine and Society (with Simon Williams and Michael Calnan) (Routledge, 2000).