chapter 1. Radiosensitization and chemoradiation -- chapter 2. Radiosensitization by oxygen and nitric oxide -- chapter 3. Radioenhancement by targeting cellular redox pathways and/or by incorporation of high-Z materials into the target -- chapter 4. Radiosensitization by halogenated pyrimidines -- chapter 5. Radiosensitization by antimetabolites -- chapter 6. Radiosensitization by platinum drugs and alkylating agents -- chapter 7. Topoisomerase inhibitors and microtubule-targeting agents -- chapter 8. Targeting the DNA damage response : ATM, p53, checkpoints, and the proteasome -- chapter 9. Radiosensitization by inhibition of DNA repair -- chapter 10. Targeting growth factor receptors for radiosensitization -- chapter 11. Targeting signaling molecules for radiosensitization -- chapter 12. Radiosensitization by targeting the tumor microenvironment -- chapter 13. Phytochemicals : chemopreventive, radiosensitizing, radioprotective -- chapter 14. Delivery methods for radioenhancing drugs.