Uroporphyrin accumulation in cultured chick embryo hepatocytes: comparison of 2,3,7,8-tetrachlorodibenzo-p-dioxin and 3,4,3′,4′-tetrachlorobiphenyl - Lambrecht,R.W.; Sinclair,P.R.; Bement,W.J.; Sinclair,J.F. (Toxicol Appl Pharmacol, 1988)