Dr. Anton Titov, MD. Hello! We are with Dr. Stephan Bodis, who is Professor of Radiation Oncology at the University of Zurich, Switzerland. He is Director at the Institute of Radiation Oncology in Canton Hospital, Aarau. Dr. Stephan Bodis received his MD from University of Basel in Switzerland. He was a resident in Radiation Oncology at the Joint Center for Radiation Oncology at Harvard Medical School. Dr. Stephan Bodis was also a Research Fellow in Pediatric Oncology at the Dana-Farber Cancer Institute in Boston and in Massachusetts Institute of Technology Cancer Research Center. Dr. Stephan Bodis then returned to Switzerland to take leadership positions in Radiation Oncology at hospitals affiliated with the University of Zurich. Clinical and research interests of Dr. Stephan Bodis focus on molecular radiobiology, an application of photon and proton radiotherapy in the treatment of cancer. Dr. Stephan Bodis is author of many key scientific articles on Radiation Therapy and cancer, and several book chapters on Radiation Oncology. Dr. Stephan Bodis, hello and welcome! Dr. Stephan Bodis, MD is Professor of Radiation Oncology, Zurich, Switzerland. Hello, Dr. Titov. It's a pleasure to have you here, online, and I'm looking forward to your questions and to the discussion.