I should have thanked the respondents: Andrew Rodham Wellcome Trust for the Epidemiology of Infectious Disease David Wolfe Durham University Graham Dunn University of Manchester Graham Clarke SBS, University of Wales, Bangor Tony Swann Centre for Disease Surveillance, Public Health Laboratory Service Nick Longford de Montfort University John Sherrington Pfizer Ruth Pickering Southampton University Andy Vail R+D, Clinical Sciences, University of Manchester Professor Mike Campbell Inst of Primary Care & General Practice, Northern General Hospital, Sheffield Ross Darnell Statistical Consultancy Service, University of Newcastle-u-Tyne Caroline Dore Statistical Consultancy Service, Imperial College School of Mediicine John Hughes Contracting in Pharmeceutical Industry Simon Fear University of Liverpool Professor Gilbert Mackenzie Centre for Medical Statistics, Keele University Patrick Joseph Gaffney University of Wisconsin Peter Herbison Dept of Preventive Medicine , Dunedin University Tim Marshall Public Health Educaiton & Epidemiology, University of Birmingham Paul T Seed MSc CStat ([log in to unmask]) Department of Public Health Sciences, Guy's Kings and St. Thomas' School of Medicine, King's College London, 5th Floor, Capital House 42 Weston Street, London SE1 3QD tel (+44) (0) 207 848 6621 fax (+44) (0) 207 848 6620 web page (useful Stats handouts): http://www-phm.umds.ac.uk/Statinfo/other.htm Tuesdays only: Public Health Medicine, 11th Floor, North Wing, St Thomas' Hospital, London SE1 7EH tel (44) (0)171 928 9292 x 1511 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%