TR-559 Toxicology and Carcinogenesis Studies of 2,3',4,4',5-Pentachlorobiphenyl (PCB 118) (CAS No. 31508-00-6) in Female Harlan Sprague Dawley Rats (Gavage Studies)
http://ntp.niehs.nih.gov/?objectid=BCAD3AD4-F1F6-975E-7E1744CB77F9EF81
肝臓に発がん性の明確な根拠