1. The authors are with Xiangya Hospital, Central South University, Changsha, Hunan, China. Dr. Yu is with the Hospital Evaluation Office, Dr. Zhou is with the Hospital Administration Institute, and Dr. Xiao is with the Mental Health Center. Dr. Xiao is also with the Xiangya School of Public Health at the university. Kathleen M. Pike, Ph.D., and Pamela Scorza, Sc.D., M.P.H., are editors of this column.