Figure 3From: Cytogenetic analysis of an exposed-referent study: perchloroethylene-exposed dry cleaners compared to unexposed laundry workers Frequencies of acentric fragments by time-weighted average of PCE in the dry cleaners. None of the laundry workers had acentric fragments. The frequencies of acentric fragments and blood PCE levels are correlated (R2 = 0.49; p = 0.0026).Back to article page