Effect on tissue vitamin A levels in the rat following subchronic exposure to 3,3′,4,4′,5-and 2,3′,4,4′,5-pentachlorobiphenyl (i.e. PCB 126 and PCB 118) Publication Attachment: 93-130.pdf Authors: Hakansson, H, Manzoor, E, Ahlborg, UG, Chu, I, Villenueve, D Year: 1993