Toxicity of chlorpyrifos to mallard ducks.
D000818:Animals; D004390:Chlorpyrifos / Q000032:analysis / Q000633:toxicity*; D004305:Dose-Response Relationship, Drug; D004372:Ducks / Q000502:physiology*; D005618:Fresh Water / Q000032:analysis; D010573:Pesticide Residues / Q000032:analysis; D012107:Research Design; D013997:Time Factors; D014116:Toxicology / Q000379:methods
D010573:Pesticide Residues; D004390:Chlorpyrifos