1. Pediatric Oncology; Dana-Farber/Boston Children's Cancer and Blood Disorders Center; Boston Massachusetts
2. Pediatric Oncology; “La Mascota” Children's Hospital; Managua Nicaragua
3. Pediatric Oncology; Benjamin Bloom National Children's Hospital; San Salvador El Salvador
4. Pediatric Oncology; National Children's Hospital; San Jose Costa Rica
5. Pediatric Oncology; Children's Hospital; Panama City Panama
6. Pediatric Oncology; Maternal and Child Hospital; Tegucigalpa Honduras
7. Pediatric Oncology; Robert Reid Cabral Hospital; Santo Domingo Dominican Republic
8. Pediatric Oncology; National Pediatric Oncology Unit; Guatemala City Guatemala