Abstract
We now know that the primary sources of radiation dose for
humans is the natural radiation and medical applications of
radiation. The contribution from all the medical uses in annual
per capita dose varies from a few centimeters dose from the
natural environment in developing countries by signicantly
higher rates in developed countries. The bulk of this
contribution comes, according to studies from diagnostic
radiology. It is therefore appropriate to review the radio
diagnostic examinations, which are not important information
in the diagnosis are expected to contribute, while minimizing
the doses of benecial radiological examinations.
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