PDF - http://www.drugscope.org.uk/wip/7/PDFS/needlexchange06.pdf
Abdulrahim D., Gordon D., Best D. UK. National Health Service..
"The aims of this needle exchange survey were: to investigate the extent and nature of needle exchange and wider interventions to reduce drug-related harm; to assess data reporting systems; and to investigate issues relating to the delivery, commissioning and planning of needle exchange and harm reduction services."