Dr. Kosuke Ebina MD, PhD, currently serves as an Associate Professor in the Department of Orthopaedic Surgery at Osaka University Graduate School of Medicine. He obtained his MD from Osaka University in 2000, and became an assistant professor in 2011, then specially appointed lecturer in 2019. In 2014, he participated in an exchange program between the Japan College of Rheumatology (JCR) and the European League Against Rheumatism (EULAR), during which he joined the University of Oxford. Additionally, in 2015, he embarked on a European tour as a traveling fellow for the European Rheumatism and Arthritis Surgical Society (ERASS). He is a transmitting editor of Modern Rheumatology, editorial board member of Journal of Bone and Mineral Metabolism (JBMM) and Journal of Orthopaedic Science (JOS), and a Special Interest Group (Osteoporosis) Member of APLAR. His primary research interests revolve around the clinical and basic study of rheumatoid arthritis and osteoporosis.