PCBs not to blame.
O'Shea
T J
TJ
D000818:Animals; D018104:Distemper Virus, Phocine; D004785:Environmental Pollutants / Q000032:analysis / Q000633:toxicity*; D005060:Europe; D018185:Morbillivirus Infections / Q000209:etiology / Q000401:mortality / Q000662:veterinary*; D011078:Polychlorinated Biphenyls / Q000032:analysis / Q000633:toxicity*; D046048:Seals, Earless
D004785:Environmental Pollutants; D011078:Polychlorinated Biphenyls