Sung-Tae Hong1, Armen Yuri Gasparyan2. 1. Editor-in-Chief, Journal of Korean Medical Science, Korean Academy of Medical Sciences, Seoul, Korea. 2. Section Editor, Journal of Korean Medical Science, Departments of Rheumatology and Research & Development, Dudley Group NHS Foundation Trust (Teaching Trust of University of Birmingham, UK), Russells Hall Hospital, Dudley, West Midlands, UK.