1. Department of Pediatrics, The Third Xiangya Hospital of Central South University, Changsha, China
2. School of Business Administration, Hunan University of Technology and Business, Changsha, China
3. Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
4. Center for Public Health Initiatives, University of Pennsylvania, Philadelphia, PA, USA
5. Graduate School of Science and Engineering, Chuo University, Tokyo, Japan