the american medical association, founded in 1847, represents more than 190 state societies and medical specialty associations, including internal medicine, family physician, obgyn, pediatric and emergency medicine. the ama is the largest association of physicians – both mds and dos – and medical students in the usa. our mission is to “promote the art and science of medicine and the betterment of public health”.

the nation's largest medical coding training and certification association for medical coders and medical coding jobs.

the source for medical equations, algorithms, scores, and guidelines.

wolters kluwer is a global provider of professional information, software solutions, and services.

radiopaedia.org, the peer-reviewed collaborative radiology resource.

cdc is the nation’s leading science-based, data-driven, service organization that protects the public’s health. for more than 70 years, we’ve put science into action to help children stay healthy so they can grow and learn; to help families, businesses, and communities fight disease and stay strong; and to protect the public’s health.

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the best science for better lives. explore the latest high-quality research from the lancet group