1. Division of Health Services and Outcomes Research, Children's Mercy Kansas City, Kansas City, Missouri.
2. School of Medicine and University of Missouri-Kansas City, Kansas City, Missouri.
3. School of Pharmacy, University of Missouri-Kansas City, Kansas City, Missouri.
4. Biostatistics and Epidemiology Core, Children's Mercy Kansas City, Kansas City, Missouri.
5. Department of Family Medicine and University of Kansas Medical Center, Kansas City, Missouri.
6. Department of Preventive Medicine, University of Kansas Medical Center, Kansas City, Missouri.
7. Global Health Innovations, Dallas, Texas.
8. Kenya Medical Research Institute, Nairobi, Kenya.