1. Laboratory for Statistical Analysis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan;
2. Clinical Research Center, Shizuoka General Hospital, Shizuoka, Japan;
3. The School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan;
4. Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan