[1] Ctr Dis Control & Prevent, Community Guide Branch, Div Prevent Res & Analyt Methods, Epidemiol Program Off, Atlanta, GA 30341 USA
[2] Los Angeles Dept Hlth Serv, Task Force Community Prevent Serv, Los Angeles, CA USA
[3] Univ Calif Los Angeles, Sch Publ Hlth, Los Angeles, CA 90024 USA
[4] Task Force Community Prevent Serv, New York, NY USA
[5] Columbia Univ, New York, NY USA
[6] Univ Illinois, Sch Publ Hlth, Chicago, IL USA
[7] Task Force Community Prevent Serv, Chicago, IL USA