Persistence of biochemical effect.
D002188:Cannabis / Q000494:pharmacology*; D006212:Hallucinations / Q000139:chemically induced*; D006801:Humans; D008238:Lysergic Acid Diethylamide / Q000494:pharmacology*; D013997:Time Factors; D014786:Vision Disorders / Q000139:chemically induced
D008238:Lysergic Acid Diethylamide