1. Division of Rheumatology, Kurume University Medical Center, Kurume, Japan;
2. Division of Gastroenterology, Kurume University Medical Center, Kurume, Japan;
3. Department of Pathology, Kurume University School of Medicine, Kurume, Japan;
4. Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan;
5. Division of Pathology, Kurume University Medical Center, Kurume, Japan