1. Division of Rheumatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan;
2. Division of Cardiovascular Medicine, Department of Internal Medicine, Shinko Hospital, Kobe, Japan;
3. Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan;
4. Department of Rheumatology, Shinko Hospital, Kobe, Japan