[1] Ctr Dis Control & Prevent, Natl Ctr HIV STD & TB Prevent, Off Commun, Div HIV AIDS Prevent, Atlanta, GA 30333 USA
[2] Res Triangle Inst, Res Triangle Pk, NC 27709 USA
[3] Pract Applicat Publ Hlth, Durham, NC USA
[4] N Carolina Cent Univ, Dept Hlth Educ, Durham, NC 27707 USA
[5] Univ Wisconsin, Cooperat Extens, Wisconsin Tobacco Control Monitoring & Evaluat Pr, Madison, WI 53715 USA