1. Xinxin Han is a graduate research assistant in the Department of Health Policy and Management, Milken Institute School of Public Health, at George Washington University, in Washington, D.C.
2. Qian Luo is a research associate in the Department of Health Policy and Management, Milken Institute School of Public Health, at George Washington University.
3. Leighton Ku (
) is a professor in the Department of Health Policy and Management, Milken Institute School of Public Health, and director of the Center for Health Policy Research, both at George Washington University.