Columbia subject headings:
Drugs--Physiological effect--Research--United States--Congresses.
Neuropharmacology--Research--United States--Congresses.
Neurotoxic agents--Physiological effect--Research--United States--Congresses.
Neurotoxicology--Research--United States--Congresses.
Harvard subject headings:
Drug abuse--Health aspects--Research--United States--Congresses.
Neuropharmacology--Research--United States--Congresses.
Neurotoxicology--Research--United States--Congresses.
Princeton subject headings:
Drug abuse--Health aspects--Research--United States--Congresses.
Neuropharmacology--Research--United States--Congresses.
Neurotoxicology--Research--United States--Congresses.