1. The Department of Clinical Immunology and Rheumatology, Tobata General Hospital, Tobata, Kitakyushu, Japan
2. The First Department of Pathology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
3. The Department of Surgery, Tobata General Hospital, Tobata, Kitakyushu, Japan
4. The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan