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1986年2月,作者对某化学公司防腐施工队56名(男47名、女9名;年龄20～45岁)接触聚氨酯环氧沥青混合涂料(SHL)的工人健康状况进行了调查。选择某厂未接触任何毒物的55名工人(男43名,女11名)
In February 1986, the authors investigated the health status of workers exposed to polyurethane epoxy asphalt hybrid coating (SHL) by 56 chemical workers (47 men, 9 women; age 20-45 years) of a chemical company. 55 workers (43 males and 11 females) who chose not to be exposed to any toxic substances in a factory