págs. 3-9
Cultural patterns of drug and alcohol use: an analysis of host and agent in the cultural environment
Joseph Westermeyer
págs. 11-27
Rethinking drug policies in the context of the acquired immunodeficiency syndrome
Carl Drummond, G. Edwards, A. Glanz, I. Glass, P. Jackson, E.H. Openheimer, M. Sheehan, C. Taylor, Bridgette Thom
págs. 29-35
págs. 37-49
Experience in the control of khat-chewing in Somalia
Arij Elmi, M.S. Samatar, Y.H. Ahmed
págs. 51-57
D. Madianou, M. G. Madianos, C.N Stefanis
págs. 59-65
págs. 67-74
Drug-taking among Nigerian students at universities in the United States of America
O.E. Achalu, D.F. Duncan
págs. 75-80
págs. 81-87