1. Division of Rheumatology, Department of Internal Medicine, Tokai University School of Medicine, Kanagawa, Japan;
2. Division of Pulmonary Medicine, Department of Medicine, Tokai University School of Medicine, Kanagawa, Japan;
3. Department of Obstetrics and Gynecology, Tokai University School of Medicine, Kanagawa, Japan;
4. Department of Pathology, Tokai University School of Medicine, Kanagawa, Japan