1. Center for Rheumatic Diseases, Research Center in CatholicMedical Center, Kang-Nam St. Mary's Hospital, Department of Internal Medicine Sang-Heon Lee Center for Rheumatic Diseases, ResearchCenter in CatholicMedical Center, Kang-Nam St. Mary's Hospital, Department of Internal Medicine
2. Center for Rheumatic Diseases, Research Center in CatholicMedical Center, Kang-Nam St. Mary's Hospital, Department of Internal Medicine
3. Center for Rheumatic Diseases, Research Center in CatholicMedical Center,Kang-Nam St. Mary's Hospital, Department of Internal Medicine
4. Department of Neurosurgery, the Catholic University of Korea, Seoul, Korea