[Skip to Content]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address Please contact the publisher to request reinstatement.
[Skip to Content Landing]
Sept 25, 1967


JAMA. 1967;201(13):35-36. doi:10.1001/jama.1967.03130130019004

This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.


Possible health dangers from exposure to x-rays were cited during recent testimony in support of legislation that would give the federal government authority to step up research and set limits for standards of radiation in medical and dental diagnosis. Karl Z. Morgan, director of the health physics division of the Oak Ridge (Tenn) National Laboratory for Atomic Research, told the Senate Commerce Committee that possibly between 3,500 and 29,000 persons may die in the United States each year from exposure to diagnostic radiation.

The American College of Radiology promptly called the testimony "unnecessarily alarming," and said no such deaths have been documented.

Dr. Morgan displayed a chart showing that between 2,000 and 26,000 deaths could be attributed to genetic mutation—damage to the genes of parents that results in offspring who die; 350 to 1,100 to leukemia; between 50 and 400 to thyroid tumors from dental x-rays; between 5 and 40