Columbia subject headings:
Insecticides--Environmental aspects.
Insecticides--Toxicology.
Pyrethroids--Environmental aspects.
Pyrethroids--Toxicology.
Harvard subject headings:
Insecticides--Environmental aspects.
Insecticides--Toxicology.
Pyrethroids--Environmental aspects.
Pyrethroids--Toxicology.
Princeton subject headings:
Insecticides--Toxicology.
Pyrethroids--Toxicology.