Title: Induction of hepatoma in mice by direct deep Black-Extra (DDB-EX) and occurrence of serum AFP.
Journal: Nihon geka hokan. Archiv fur japanische Chirurgie 19810101
Title: Beije B. Induction of unscheduled DNA synthesis in liver and micronucleus in bone marrow of rats exposed in vivo to the benzidine-derived azo dye, Direct Black 38. Mutat Res. 1987 Apr;187(4):227-34.