Selection of photos taken at the Witness Seminar “Platelets in Thrombosis and Other Disorders ” held by the History of Twentieth Century Medicine Group, 25-Nov-2003. Participants: Dr Y S [Mick] Bakhle, Professor Sir Christopher Booth, Professor Gustav Born, Professor Donald Chambers, Professor John Dickinson, Professor Peter Elwood, Professor Rod Flower, Professor Alison Goodall, Professor John Hampton, Professor Michael Harrison, Professor Stan Heptinstall, Dr Peter Hunter, Dr Peter MacCallum, Dr Martyn Mahaut-Smith, Professor Tom Meade (Chair), Professor Salvador Moncada, Professor Michael Oliver, Professor Clive Page, Professor Sir Stanley Peart, Professor Colin Prentice, Professor Peter Richardson, Dr Stewart Sage, Dr Tilli Tansey, and ...