Kresina Thomas F, Khalsa Jag, Cesari Helen, Francis Henry
Center on AIDS and other Medical Consequences of Drug Abuse, National Institute on Drug Abuse, National Institutes of Health, Bethesda, Maryland 20892, USA.
Clin Infect Dis. 2005 Apr 15;40 Suppl 5:S259-62. doi: 10.1086/427438.