2,3,7,8 Chlorine Substituted Dioxin and Dibenzofuran Congeners in 2,4-D, 2,4,5-T and Pentachlorophenol Publication Attachment: 97-309.pdf Authors: Schecter, A, Papke, O, Isaac, J, Hrimat, NS, Neiroukh, F, Safi, J, El-Nahhal, Y Year: 1997