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In 1974 ,CreechandJohnsonreportedtheoccurrenceofan giocarcoma(血管肉瘤) ,arareandfatalmalignancyoftheliver,amongworkersexposedtohighlevelsofvinylchloride(氯乙烯VC)inmanufacturingplantsintheUnitedStates.Thiseventnearlycoincidedwiththeearliestreportsoftheca
In 1974, Creechand Johnsonreportedtheoccurrenceofan giocarcoma (angiosarcoma), arareandfatalmalignancyoftheliver, amongworkersexposedtohighlevelsofvinylchloride (vinyl chloride VC) in manufacturing sites of United States.Thiseventarilyarlycoincidedwiththeearliestreportsoftheca