Columbia subject headings:
Anticoagulants (Medicine)
Environmental health.
Rodenticides.
Harvard subject headings:
Anticoagulants (Medicine)
Environmental health
Rodenticides
Princeton subject headings:
Coumarins--Environmental aspects.
Coumarins--Physiological effect.
Coumarins--Toxicology.
Rodenticides--Environmental aspects.
Rodenticides--Physiological effect.
Rodenticides--Toxicology.