radiobiology, electromagnetic radiation, biological systems, ionizing radiations, mutations, growth delay and disturbance, whole body radiation syndrome, teratogenesis, subcellular level, signal transduction, DNA damage and repair, cellular circuitry, proliferation, hallmarks, immortalization, telomerase, TERT, HER2, stop signals, Rb, apoptosis, sustained angiogenesis, blood vessels, VEGF, vascular endothelial growth factor, dermis, basement membrane, cervical carcinoma, tissue boundaries, carcinoma in situ, cellular metabolism, PET scan, genomic instability, chronic inflammation/irritation, foundational radiobiology