Bao-Peng Liu, Ph.D. in epidemiology and health statistics, is now a researcher/professor in the department of epidemiology, Shandong University. The research direction is psychological, behavioral factors and  population health and systemic epidemiology of self-injury/suicide behavior. He presided over the project of the National Natural Science Foundation of China and the Natural Science Foundation of Shandong Province. He has published more than 20 articles in SCI/SSCI/core journals in this field as an independent first author or co-first author and corresponding author, and is also a young member of the Crisis Intervention Professional Committee of the China Mental Health Association.