[The importance of liver changes in workers with chronic benzene exposure].

Essential parameters of hepatic functioning in 84 labourers, whose exposition to benzene is differing in assimilation as well as length of time is discussed.--45 persons from the same county without contact to benzene or hepatotoxic agents served as control-group. Neither long-term exposure to benzene nor its size were of any influence on the hepatic data controlled.--Correlations became evident in non-occupational factors such as alcoholism and overweight.--Any damaging effect of benzene on the liver can be excluded.