... tobacco smoking, pastmedical history, drug history, performing heavy exercises,work history including any changes of the job and secondjob, history of surgery and history of blood transfusionwere ... exposed to chlorinated aliphatic hydrocar-bons. Br J Ind Med 1992, 49:700.24. Williams D, Smith P, Taylor K, Crossley I, Duck B: Monitoring liverdisorders in vinyl chloride monomer workers using ... biochemical indices of workers exposed to vinyl chlorideand dichloroethane. Probl Khig 1984, 9:50-58.Table 5: Comparison of liver enzyme levels (ALP, GGT) according to work experience in case...