@book{13704,
	author = {WHO Expert Committee on Drug Dependence (1992 : Geneva). and World Health Organization.},
	title = {WHO Expert Committee on Drug Dependence [meeting held in Geneva, 28 September - 2 October 1992] : twenty-eighth report.},
	publisher = {World Health Organization,},
	year = {1993.},
	series = {WHO technical report series ; 836.},
	address = {Geneva : }
}