St. Lawrence beluga whales, the river sweepers?
D000367:Age Factors; D000818:Animals; D000829:Animals, Domestic; D002423:Cause of Death; D004781:Environmental Exposure; D004784:Environmental Monitoring; D062665:Epidemiological Monitoring; D006801:Humans; D009369:Neoplasms / Q000209:etiology / Q000662:veterinary*; D011084:Polycyclic Aromatic Hydrocarbons / Q000009:adverse effects*; D011792:Quebec / Q000453:epidemiology; D014874:Water Pollutants, Chemical / Q000009:adverse effects*; D014907:Whales
D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical