Affiliation: | 1. Center for Public Health Initiatives, University of Pennsylvania, Philadelphia, PA 19104, USA;2. Department of Educational Psychology and Learning Systems, Florida State University, Tallahassee, FL, USA;3. Department of Epidemiology, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China;4. School of Psychology, Northeast Normal University, Changchun, China |