American Society for Radiation Oncology

Radiation oncologists, medical physicists, dosimetrists, radiation therapists, radiation oncology nurses and nurse practitioners, biologists, physician assistants and practice administrators comprise ASTRO’s nearly 10,000 members, making it the largest radiation oncology organization of its kind. These medical professionals, found at hospitals, cancer treatment centers and academic research facilities around the globe, make up the radiation therapy treatment teams that are critical in the fight against cancer. Together, these teams, treat more than 1 million cancer patients each year.

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