A preliminary approach to characterizing variability and uncetainty in the mammalian PCDD/F and PCB TEFs Publication Attachment: 04-570.pdf Authors: Haws, Laurie, Harris, Mark, Su, Steave, Walker, Nigel, Birnbaum, Linda, DeVito, Michael, Farland, William, Connor, Kevin, Santamaria, Annette, Finley, Brent Year: 2004