1. Zhanlian Feng ( ) is a senior research public health analyst in the Aging, Disability, and Long-Term Care Program at RTI International, in Waltham, Massachusetts.
2. Chang Liu is a doctoral candidate in the Department of Health Services, Policy, and Practice at Brown University, in Providence, Rhode Island.
3. Xinping Guan is chair of the Department of Social Work and Social Policy and director of the Institute of Social Development and Administration at Nankai University, in China.
4. Vincent Mor is the Florence Pirce Grant Professor of Community Health in the Public Health Program at the Brown University School of Medicine.