005610000a22001450004500003000900000005001700009110011100026245013100137020001800268264004900286490004000335300000900375041000800384650002300392PH-MaWHO20241108112322.0 aWorld Health Organization Study Group on Ataractic and Hallucinogenic Drugs in Psychiatry (1957 : Geneva). aAtaractic and hallucinogenic drugs in psychiatry : report of a study group [meeting held in Geneva from 4 to 9 November 1957]. a92-4-120152-5 aGeneva : bWorld Health Organization,c1958. a(WHO technical report series ; 152) a72p. aeng aPsychotropic drugs