Eduardo G Moros1, Per H Halvorsen2. 1. Departments of Radiation Oncology, Diagnostic Imaging, and Cancer Imaging and Metabolism, H. Lee Moffitt Cancer Center, Tampa, Florida 33612 (Tel: 813-745-1075; E-mail: eduardo.moros@moffitt.org). 2. Department of Radiation Oncology, Lahey Health, Burlington, Massachusetts 01805 (Tel: 781-744-3628; E-mail: Per.H.Halvorsen@lahey.org).