Allison Betof Warner, MD, PhD is an Assistant Attending Physician on the Melanoma Service at Memorial Sloan Kettering Cancer Center. Dr. Betof graduated with her MD/PhD from the Medical Scientist Training Program at Duke University. She completed her PhD under the supervision of Drs. Mark Dewhirst and Lee Jones, studying the effects of exercise on tumor angiogenesis and chemotherapeutic efficacy. Dr. Betof went on to Internal Medicine residency at Massachusetts General Hospital then Medical Oncology Fellowship at Memorial Sloan Kettering Cancer Center. Her research explores how modulations in tumor microenvironment affect tumor immunobiology and immunotherapy. A main focus of her research investigates exercise effects on tumor microenvironment, immunotherapy, and treatment outcomes in melanoma and other malignancies. Her clinical research focuses on duration of immunotherapy treatment in complete responders and novel therapies for PD-1 refractory disease.