Paustenbach, D.J., L.L.F. Scott, L.M. Nguyen, K.M. Unice, P. Scott, L.C. Haws, and M. Harris. 2007. Referent Concentrations of PCDD/Fs and Dioxin-like PCBs in Sera of Persons in the U.S. Based on the New WHO 2006 TEFs and 2001-2002 NHANES Data. Ann Epidemiol. 17:734.