title: Observations on the effects of four weeks of heavy marihuana smoking on group interaction and individual behavior.
mesh_terms: D000328:Adult; D000339:Affect / Q000187:drug effects; D002188:Cannabis; D006126:Group Processes; D006801:Humans; D008297:Male; D012919:Social Behavior; D013375:Substance Withdrawal Syndrome / Q000523:psychology