The ForumManaging the Care of Health and the Cure of Disease—Part I: DifferentiationGlouberman, Sholom; Mintzberg, HenryAuthor Information Sholom Glouberman, Ph.D., is Philosopher in Residence, Baycrest Centre for Geriatric Care, and Research Fellow, Kunin-Lunefeld Applied Research Unit, Toronto, Ontario, as well as an Associate Fellow, King's Fund, London, England. Email: firstname.lastname@example.org. Henry Mintzberg, Ph.D., is Cleghorn Professor of Management Studies, Faculty of Management, McGill University, Montreal, Quebec, Canada. This article is based on a variety of small research interventions. These include: the observation of a range of health system managers from the chief executive of the National Health Service in England to practicing clinical directors; visits to a wide variety of health system sites; and a series of seminars over several years conducted with the support of the King Edward's Hospital Fund for London. Our deep appreciation goes to the many thoughtful people in the English system, including those of the King's Fund, who participated in these experiences. We do not have the space to acknowledge all the individuals and groups who have contributed to this work, but we wish to mention the following who have been especially helpful: C. Karel Musch and his group in the Netherlands, Richard Higgins, Richard James, Anton Obholzer and members of the TMP Learning Set in the UK, Charles McDougall, Stephen Herbert, Harold Frank, and Lise Lamothe in Canada, and Jo Ivey Boufford in the United States. Health Care Management Review: January 2001 - Volume 26 - Issue 1 - p 56-69 Buy Copyright © 2001 by Aspen Publishers, Inc.