Taisa Guarilha, MD, is the Bracco Research Fellow in pediatric contrast ultrasound health services and economics. She graduated from Estacio de Sá University Medical School and specialized in radiology at Instituto D’Or, both in Rio de Janeiro. At the Federal University of São Paulo, Dr. Guarilha specialized in pediatric radiology and neuroradiology and gained extensive experience in pediatric oncologic radiology while working at Grupo de Apoio ao Adolescente e à Criança com Câncer (GRAACC), Brazil's largest specialized center.