Affiliation: | 1. David Geffen School of Medicine at UCLA, , Los Angeles, USA;2. Department of Radiology, UCLA Health System, , Los Angeles, USA;3. UC Irvine School of Medicine, , Irvine, California, USA;4. Department of Radiation Oncology, UCLA Health System, , Los Angeles, USA;5. Jonsson Comprehensive Cancer Center, , Los Angeles, USA |