1. Institute of Rheumatology, Zenjin-kai Shimin-No-Mori Hospital, Miyazaki, Japan
2. Department of Rheumatology, Infectious Diseases and Laboratory Medicine, Internal Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
3. Division of Parasitology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan