N J Vianna

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There was a significant excess of deaths caused by major lymphomas in men employed in occupations where benzene and/or coal tar fractions are used. The increase in risk was limited to those who were 45 years of age and older at death, an observation which is consistent with the possibility that chronic exposure might be important. Evidence from other(More)
A study of the occupational histories of 52 females with malignant mesothelioma and certain of their relatives, carried out to measure the risk of this disorder attributable to indirect asbestos exposure, showed that a significantly greater number of husbands and fathers of cases than of controls worked in asbestos-related industries, and the relative risk(More)
The relation between previous tonsillectomy and Hodgkin's disease was examined in a case-control study involving 81 histologically confirmed childhood cases and two sibling control groups. When cases were compared with age-matched sibling controls a significant association (p < 0.02), with a risk of 2.7, was observed for children who had undergone(More)
Vinyl chloride (VCM) induced angiosarcoma of the liver (ASL) is a rare vascular tumor which might be associated with a wide range of disease states. The possibility that this tumor might be a signal lesion is supported by mortality studies suggesting that cancers of the digestive, respiratory, neurological and lymphatic systems have occurred more often than(More)
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