PATTERNS AND TRENDS OF PCBS AND PCDD/FS IN NW ATLANTIC HARBOR SEALS: REVISITING TOXIC THRESHOLD LEVELS USING THE NEW TEFS Publication Attachment: 07-1013.pdf Authors: Shaw, SD, Brenner, D, Berger, ML, Dwyer, M, Fang, F, Hong, C-S, Storm, R, O'Keefe, P Year: 2007