Bronchial dysplasia induced by radiation in miners exposed to 222Rn progeny

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      <subfield code="a">Bronchial dysplasia induced by radiation in miners exposed to 222Rn progeny</subfield>
      <subfield code="c">M.A. Michaylov, D.S. Pressyanov, K.B. Kalinov</subfield>
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      <subfield code="a">Objectives: to investigate whether sputum cytology can be used to monitor epithelial cell changes in groups at high risk of lung cancer from exposure to radiation -- Methods: dysplasia of bronchial cells was investigated by means of sputum cytology in a group of 434 underground miners. 100 of them were not exposed, and 334 were exposed to 222Rn progeny at cumulative exposures < 450 working level months</subfield>
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      <subfield code="t">Occupational and environmental medicine</subfield>
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      <subfield code="g">Vol. 52, nº 2, February 1995 ; p. 82-85</subfield>
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