1. Gillings School of Global Public Health, University of North Carolina at Chapel Hill
2. University of North Carolina Project–China, Guangzhou, Guangdong, China
3. Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore
4. Clinical Research Department, London School of Hygiene and Tropical Medicine, London, United Kingdom
5. Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
6. Health Sciences Library, University of North Carolina at Chapel Hill
7. Department of Medicine, University of North Carolina at Chapel Hill
8. Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio