1. Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
2. Department of Industrial and Systems Engineering, Auburn University, Auburn, Alabama
3. Carey Business School, Johns Hopkins University, Baltimore, Maryland
4. Department of Computer Science and Software Engineering, Miami University, Oxford, Ohio
5. Department of Epidemiology and Biostatistics, Saint Louis University, Saint Louis, Missouri
6. Farmer School of Business, Miami University, Oxford, Ohio