Affiliation: | 1. Department of Radiology, St. Marianna University School of Medicine, Kawasaki, Japan;2. Divisions of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan;3. Division of Rheumatology, Itabashi Chuo Medical Center, Tokyo, Japan;4. Division of Rheumatology, Columbia University, College of Physicians and Surgeons, New York City, New York, USA;5. Division of Cardiology, Tokyo Medical Collage, Tokyo, Japan |