3. Pediatric Hematology/Oncology
The Division of Pediatric Hematology/Oncology at Penn State Children's Hospital provides World Class Care to infants, children, adolescents and young adults with two very distinct groups of disorders.
http://www.hmc.psu.edu/hematology/

4. Division of Pediatric Hematology/Oncology at Mayo Clinic in Minnesota
Comprehensive treatment strategies built with input as needed from specialists in orthopedic oncology, pediatric surgery, pediatric urology, pediatric infectious disease and other specialties and subspecialties.
http://www.mayoclinic.org/pediatric-hematology-oncology-rst/

5. Texas Children's Cancer Center and Hematology Service - Texas Children's Hospital - Houston, TX
Texas Children s has the largest pediatric hematology/oncology center in Texas and one of the largest in the United States, specializing in the treatment of pediatric cancer and blood diseases. Pediatric Associates.
http://www.texaschildrenshospital.org/carecenters/cancer/