Director and Tenured Associate Professor of Epidemiology at Baylor University, Texas, USA
Visiting Scientist at Harvard T. H. Chan School of Public Health & Visiting Scholar at UNC Chapel Hill Gillings School of Global Public Health
President of China Health Policy and Management Society (CHPAMS)
Founding President of International Chinese Nutrition Young Scholar Network (ICNYSN)
Former Associate Director of China-Tennessee Health Education Training Institute
Former Chair of Public Relations of North America Chinese Society for Nutrition (NACSN)