Home > About > Our Team > Radiobiology Faculty Our Team Leadership Faculty Residents & Fellows Medical Faculty Physics Team Radiobiology Faculty Mary Helen Barcellos-Hoff, PhD Professor, Vice Chair, Research, Director of Radiation Biology Department of Radiation Oncology John P. Murnane, PhD Professor, Department of Radiation Oncology Paola Betancur, PhD Assistant Professor, Department of Radiation Oncology Jean-Philippe Coppé, PhD Associate Professor, Department of Radiation Oncology James Lee, MD Assistant Professor, Department of Radiation Oncology Redefining Possible