CT was discovered independently by a British engineer named Sir Godfrey Hounsfield and Dr. Alan Cormack. It has become a mainstay for diagnosing med...learn more »
Diagnostic x-rays are safe. But who hasn't wondered about them when undergoing a chest x-ray, mammogram, routine dental x-rays, or an x-ray for a broken bone?
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"The pill" was introduced in the United States in 1962 and signaled a new era for women and their ability to control their fertility.learn more »