Letter: Radical notion.
D002188:Cannabis / Q000494:pharmacology*; D006213:Hallucinogens / Q000494:pharmacology; D006801:Humans; D012559:Schizophrenia / Q000517:prevention & control*; D012565:Schizophrenic Psychology; D013375:Substance Withdrawal Syndrome; D014149:Tranquilizing Agents / Q000494:pharmacology
D006213:Hallucinogens; D014149:Tranquilizing Agents