Robyn Gartrell, MD, MS is a physician-scientist and pediatric oncologist at Johns Hopkins University School of Medicine. Dr. Gartrell’s primary research focuses on combination approaches including radiation, chemotherapy, and other target agents with immunotherapy to improve response, increase survival, and decrease toxicity for children, adolescents, and young adults with cancer. Her laboratory uses advances in tumor immunology and radiation to develop more effective and more personalized therapies for kids with cancer. Most recently, Dr. Gartrell is leading projects to understand the differential effects of FLASH and conventional radiation on the tumor immune microenvironment and implications for toxicity, especially in the developing brain.