Present state of the coca-leaf habit in Colombia
Medical deontology and reporting of drug addicts
Hong Kong's prison for drug addicts
Manufacture of alkaloids from the poppy plant in Hungary
Human pharmacology and addictiveness of ethyl 1-(3-cyano-3, 3-phenylpropyl)-4-phenyl-4-piperidine carboxylate hydrochloride (R-1132, Diphenoxylate)