[1] Ctr Dis Control & Prevent, Div STD Prevent NCHHSTP, Surveillance & Data Management Branch, Atlanta, GA USA
[2] Philadelphia Dept Publ Hlth, Philadelphia, PA USA
[3] Minnesota Dept Hlth, Minneapolis, MN USA
[4] Massachusetts Dept Publ Hlth, Boston, MA USA
[5] Univ Washington, Publ Hlth Seattle & King Cty, Seattle, WA 98195 USA
[6] Univ Washington, Dept Med, Seattle, WA USA
[7] San Francisco Dept Publ Hlth, San Francisco, CA USA
[8] New York City Dept Hlth & Mental Hyg, New York, NY USA
[9] Johns Hopkins Univ, Sch Med, Baltimore, MD USA
[10] Baltimore City Dept Hlth, Baltimore, MD USA
[11] Multnomah Cty Hlth Dept, Portland, OR USA