1. Asociación Benéfica Prisma, Lima, Peru;Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA;
2. Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA;
3. Asociación Benéfica Prisma, Lima, Peru;U.S. Naval Medical Center Research Detachment, Lima, Peru;
4. Asociación Benéfica Prisma, Lima, Peru;Universidad Peruana Cayetano Heredia, Lima, Peru;
5. Ministry of Health, Iquitos, Peru;
6. University of California San Diego School of Medicine, La Jolla, California, USA