Dr. Jiachen Sun is presently working as a Ph.D. candidate at Department of Orthopedics, West China Hospital, Sichuan University, China. He attended a fellowship at the Department of Orthopedics and Traumatology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany from October 2020 to October 2021. He specializes in tissue engineering and orthopaedic diseases.