Eun-Jee Oh, M.D., M.S., Ph.D., is a Professor in the Department of Laboratory Medicine at the College of Medicine, The Catholic University of Korea, and serves at Seoul St. Mary’s Hospital. She is also the Director of the Research and Development Institute for In Vitro Diagnostic Medical Devices at the College of Medicine, The Catholic University of Korea. Dr. Oh received her M.D. from Ewha Womans University and her M.S. and Ph.D. in Clinical Pathology from The Catholic University of Korea. She previously worked as a Research Doctor in the Department of Immunology at the Lerner Research Center, Cleveland Clinic, USA. Her research focuses on transplantation immunology, cellular and humoral immune responses, HLA antibodies, infectious disease immunology, viral markers for HBV, HCV, and HIV, autoimmune testing, and clinical evaluation of in vitro diagnostic devices. She has led numerous investigator-initiated and multicenter clinical performance studies and has published extensively on kidney transplantation, SARS-CoV-2 immunity, diagnostic biomarkers, and laboratory medicine.