This is the authors' correspondance in response to correspondance from Michael Copeman (pg 889-890) both published in The Lancet March 2002, regarding the original article "Feasibility, safety, and efficacy of injectable heroin prescription for refractory opioid addicts: a follow-up study" Lancet 2001; 358:1417-23. Full text of both correspondances can be found on thelancet.com via free regisration. The original article can be found on: http://www.thelancet.com/journals/lancet/medline/record/ivp_01406736_358...