He is a Professor in the Department of Health Policy and Management, in the Harvard School of Public Health where he is the CoDirector of the Programme in Clinical Effectiveness, and Professor of Medicine at Harvard Medical School. ###>Il est professeur au Département de la politique et de la gestion de la santé de la Harvard School of Public Health, où il codirige le programme d'efficacité clinique, et professeur de médecine à la Harvard Medical School.