Chung-Yen Chen, MD, MSc, is an attending physician in the Department of Environmental and Occupational Medicine at National Taiwan University (NTU) Hospital's Yunlin Branch. He is also a Ph.D. student at NTU's Institution of Environmental and Occupational Health Sciences, supervised by Professor Pau-Chung Chen. He graduated from NTU's School of Medicine in 2016 with a double degree in Sociology and a minor in Economics, as well as from the Institution of Health Policy and Management in 2018. His main areas of interest are labor sociology and occupational health policy, epidemiology, and medicine, with a focus on under- diagnosis of occupational diseases in Taiwan. During his master's studies, under the supervision of Professor Yawen Cheng, he used the population-attributable risk approach to estimate the magnitude of under-estimation of occupational respiratory diseases and asbestos-related diseases in Taiwan.