1. Division of Pulmonary and Critical Care and
2. Biomedical Research Unit, A.B. Prisma, Lima, Peru;
3. Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland;
4. Global Child Health Center, Cincinnati Children's Hospital Medical Center, College of Medicine, University of Cincinnati, Cincinnati, Ohio; and
5. Welch Medical Library, School of Medicine, and
6. Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, District of Columbia