1. Health Research Board (HRB) Centre for Primary Care Research, Department of General Practice, Royal College of Surgeons in Ireland Medical School, Dublin 2, Ireland
2. Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University, Belfast, UK
3. Division of Population Health Sciences, Royal College of Surgeons in Ireland, Dublin 2, Ireland
4. Health Service Executive Medicines Management Programme, Trinity Centre for Health Sciences, St. James’s Hospital, Dublin 8, Ireland
5. National Centre for Pharmacoeconomics, Trinity Centre for Health Sciences, St. James’s Hospital, Dublin 8, Ireland