Youngjae Park, MD, PhD, is an Assistant Professor in the Division of Rheumatology at Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea. He completed his medical degree and PhD at The Catholic University of Korea and is board-certified in Internal Medicine and Rheumatology. His research focuses on the immunopathogenesis and biomarkers of systemic autoimmune diseases, particularly Sjögren’s disease and systemic lupus erythematosus. His work aims to translate immunological discoveries into improved diagnostics and therapeutic strategies for systemic autoimmune diseases.