1. Pediatric Nephrology Unit/Fundanier, Roosevelt Hospital, Guatemala City, Guatemala.
2. University of San Carlos of Guatemala, Guatemala City, Guatemala.
3. Duke Global Health Institute, Durham, North Carolina, United States of America.
4. FUNDEGUA, Guatemala City, Guatemala.
5. Department of Orthopedics, Duke University Medical Center, Durham, North Carolina, United States of America.
6. Guatemala Ministry of Public Health and Social Assistance, Guatemala City, Guatemala.
7. rice0017@mc.duke.edu