Columbia subject headings:
Marijuana--Physiological effect--Congresses.
Marijuana--Therapeutic use--Congresses.
Tetrahydrocannabinol--Physiological effect--Congresses.
Tetrahydrocannabinol--Therapeutic use--Congresses.
Harvard subject headings:
Marijuana--Physiological effect--Congresses.
Marijuana--Therapeutic use--Congresses.
Tetrahydrocannabinol--Physiological effect--Congresses.
Tetrahydrocannabinol--Therapeutic use--Congresses.
Princeton subject headings:
Marijuana--Physiological effect--Congresses.
Marijuana--Therapeutic use--Congresses.
Tetrahydrocannabinol--Physiological effect--Congresses.
Tetrahydrocannabinol--Therapeutic use--Congresses.