1. London School of Hygiene and Tropical Medicine; London UK
2. University of Glasgow; Glasgow UK
3. Duke University Medical Centre; Durham USA
4. AstraZeneca; Wilmington USA
5. Karolinska University Hospital; Stockholm Sweden
6. Brigham and Women's Hospital, Harvard Medical School; Boston USA
7. Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
8. National Heart and Lung Institute; Imperial College London
9. Hamilton Health Sciences and McMaster University; Hamilton Canada