Neil McKeganey is Reader and Director of the Centre for Drug Misuse Research at Glasgow University. He has carried out research on drug misuse, prostitution and HIV for the last ten years. He has published numerous articles on these topics and is the author, with Marina Barnard, of AIDS, Drugs and Sexual Risk Lives in the Balance Open University Press, 1992. Marina Barnard is a senior research fellow at the Centre for Drug Misuse Research at the University of Glasgow. She has carried out research on drug use, prostitution and HIV for the last seven years, and has published widely in each o...