1. University of Southampton; Faculty of Health Sciences; Room 67/20209 Highfield Campus Southampton UK S017 1BJ
2. Queen Mary University of London; Centre for Primary Care and Public Health, Barts and The London School of Medicine and Dentistry; 58 Turner Street Whitechapel London UK E1 2AB
3. Stroger Hospital of Cook County; Department of Medicine; 1900 W. Polk Street, 16th floor Chicago MI USA 60612
4. Columbia University; Department of Epidemiology, Mailman School of Public Health; Room 1613, 722 W 168 St New York NY USA 10032
5. Department for International Development; Evaluation Department; 22 Whitehall London UK SW1A 2EG
6. The University of Melbourne; Department of General Practice; 200 Berkeley Street Parkville Melbourne Victoria Australia 3010
7. La Trobe University; The Judith Lumley Centre; 215 Franklin Street Melbourne Victoria Australia 3000
8. University of Bristol; Centre for Academic Primary Care, School of Social and Community Medicine; Canynge Hall 39 Whatley Road Bristol UK BS8 2PS