Additional resources

Other organizations and websites*

In addition to the American Cancer Society, other sources of information and support include:

Centers for Disease Control and Prevention (CDC)
Toll-free number: 1-800-232-4636 (1-800-CDC-INFO)
Information about radiation and health:

Environmental Protection Agency (EPA)
Understanding Radiation:

Food and Drug Administration (FDA)
Information about radiation emitting products (including imaging tests):

Image Gently: The Alliance for Radiation Safety in Pediatric Imaging
Information for parents:

National Cancer Institute (NCI)
Toll-free number: 1-800-422-6237 (1-800-4-CANCER)

National Institute of Environmental Health Sciences

*Inclusion on this list does not imply endorsement by the American Cancer Society.

No matter who you are, we can help. Contact us anytime, day or night, for information and support. Call us at 1-800-227-2345 or visit

The American Cancer Society medical and editorial content team
Our team is made up of doctors and master's-prepared nurses with deep knowledge of cancer care as well as journalists, editors, and translators with extensive experience in medical writing.

Last Medical Review: February 24, 2015 Last Revised: February 24, 2015

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