Torian Lucia V, Henning Kelly J, Kellerman Scott E, Frieden Thomas R
HIV Epidemiology Program, New York City Department of Health and Mental Hygiene, 125 Worth St., CN#44, New York, NY 10013, USA.
Public Health Rep. 2007;122 Suppl 1(Suppl 1):4-6. doi: 10.1177/00333549071220S102.