American Society for Radiation Oncology
ASTRO's advances the practice of radiation oncology by promoting excellence in patient care, providing opportunities for educational and professional development, promoting research and disseminating research results.
Radiation Therapy Oncology Group
Site of the Radiation Therapy Oncology Group (RTOG), a multi-institutional cooperative organization, comprised of 250 research institutions in the US and Canada, funded by NCI, with 40+ active studies related to radiation therapy and an active interest in quality of life issues.
National Cancer Institute Radiation Therapy Resources
Radiation therapy resources from the NCI including fact sheets in English and Spanish, a booklet for providers and audio CD for patients.