Ruth E. Luna-Gierke, Epidemiologist, Division of HIV Prevention, National Center for HIV, Viral Hepatitis, STD, and TB Prevention, CDC, Atlanta, Georgia, USA. Yunfeng Tie, Epidemiologist, Division of HIV Prevention, National Center for HIV, Viral Hepatitis, STD, and TB Prevention, CDC, Atlanta, Georgia, USA. Xin Yuan, Programmer/Analyst, DLH Corporation, Incorporated, Atlanta, Georgia, USA. Qingwei Luo, Health Scientist, ICF International, Fairfax, Virginia, USA. Linda Beer, Epidemiologist, Division of HIV Prevention, National Center for HIV, Viral Hepatitis, STD, and TB Prevention, CDC, Atlanta, Georgia, USA. Sharoda Dasgupta, Epidemiologist, Division of HIV Prevention, National Center for HIV, Viral Hepatitis, STD, and TB Prevention, CDC, Atlanta, Georgia, USA.

*Corresponding author: Ruth E. Luna-Gierke, e-mail: [email protected]