1. Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts
2. Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Beijing, China
3. Department of Health Policy, London School of Economics and Political Science, London, UK
4. Division of Cancer Care and Epidemiology, Departments of Oncology and Public Health Sciences, Queen’s University Cancer Research Institute, Kingston, Canada