Dr. Li has joined in UCLA as a professor from 2019. He shares a position between the Fielding School of Public Health, Environmental Health Sciences Department and the School of Nursing. Before his appointment at UCLA, Dr. Li had been working in China and Germany with extensive experience on occupational health. He is an active member of the International Commission on Occupational Health (ICOH) Scientific Committees on Cardiology in Occupational Health, and on Work Organisation and Psychosocial Factors. During 2006-2010, Dr.