Polychlorinated dibenzo-p-dioxin and dibenzofuran concentration profiles in sediments and flood-plain soils of the Tittabawassee River, Michigan - Bradley, Patrick W.; Giesy, John P.; Hanari, Nobuyasu.; Hilscherova, Klara.; Kannan, Kurunthachalam.; Mccabe, John M.; Nakata, Haruhiko.; Taylor, Allan B.; Yamashita, Nobuyoshi.