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Certain significant differences were found between the mean IgG levels in four different population groups. No differences were found in the IgA and IgM classes. The highest IgG levels were found in food workers and the lowest levels in coal-miners working at the face. Surface mine employees and employees just taken on for underground work had intermediate values. On dividing the population groups into age sub-groups, significant differences were found between some of the latter. Physical stress, differences in exposure to infections, the influence of the macro- and micro-climate and spontaneous and controlled selection for given occupations are regarded as possible causes of the observed differences.
V Wagner, and
J Andrlíková, and
M Wagnerová, and
E Schön
November 2015,
Clinical chemistry and laboratory medicine,
V Wagner, and
J Andrlíková, and
M Wagnerová, and
E Schön
January 1984,
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V Wagner, and
J Andrlíková, and
M Wagnerová, and
E Schön
May 1977,
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V Wagner, and
J Andrlíková, and
M Wagnerová, and
E Schön
January 1973,
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V Wagner, and
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M Wagnerová, and
E Schön
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V Wagner, and
J Andrlíková, and
M Wagnerová, and
E Schön
January 1967,
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V Wagner, and
J Andrlíková, and
M Wagnerová, and
E Schön
March 1983,
Minerva pediatrica,
V Wagner, and
J Andrlíková, and
M Wagnerová, and
E Schön
March 1995,
Clinical and diagnostic laboratory immunology,
V Wagner, and
J Andrlíková, and
M Wagnerová, and
E Schön
January 1970,
Voprosy revmatizma,
V Wagner, and
J Andrlíková, and
M Wagnerová, and
E Schön
December 1968,
Pediatrie,
