http://archpsyc.ama-assn.org/cgi/eletters/66/10/1108#13504
Readers Reply to:
Original Article:
Gary K. Hulse; Noella Morris; Diane Arnold-Reed; Robert J. Tait.
Improving Clinical Outcomes in Treating Heroin Dependence: Randomized, Controlled Trial of Oral or Implant Naltrexone.
Arch Gen Psychiatry 2009; 66: 1108-1115 [Abstract] [Full text] [PDF]
Electronic letters published:
Naltrexone implant study problematic
Andrew Byrne (27 January 2010)
[see link above]