Chao-Chun Yang, M.D., Ph.D., is the Professor and Chairman in the Department of Dermatology, National Cheng Kung University Hospital, Tainan Taiwan. Dr. Yang specializes in treating hair and scalp disorders. His research interests focuses on hair regeneration, skin adipose tissues and skin mechanobiology. Dr. Yang had a broad interests in clinical topics, especially alopecia, and conducted a wide range of basic and clinical studies.