Use of radiation epidemiology for purposes of radiological protection for medical exposure

Latest data of radiation-epidemiological studies allow making suggestion that methods and means of radiation epidemiology can be used for purposes of radiological protection for medical exposure. Basic principles of the use of population-based approach to the assessment of radiation risk of medical exposure to ionizing radiation are discussed in the article. Analysis of results obtained in population radiation and epidemiological studies of health effects of the Chernobyl accident allows authors to draw conclusion that doses obtained as a result of radiological procedures are not critical for delayed development of cancer.