1. Departments of Medicine (Cardiology); Northwestern University Feinberg School of Medicine; Chicago IL USA
2. Department of Medicine-General Internal Medicine and Geriatrics; Northwestern University; Chicago Illinois USA
3. Faculty of Epidemiology and Population Health; London School of Hygiene and Tropical Medicine; London UK
4. Departments of Preventive Medicine and Medicine (Cardiology); Northwestern University Feinberg School of Medicine; Chicago IL USA
5. Galter Health Sciences Library; Northwestern University; Chicago IL USA