About Hallucinogenic Drugs G. Birdwood BMJ • October 30, 1971 • DOI: 10.1136/bmj.4.5782.309-a (opens in new tab) Read Full Text Copy APA Copy BibTeX Relevant 0 Not relevant 0 Study at a glance AI-extracted from the abstract Characteristics Peer reviewed Abstract and can only be judged in isolation.Combined together as separate chapters in this book they make a strange