1. Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU) , Tokyo, Japan
2. Department of Child Health and Development, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU) , Tokyo, Japan
3. Center for Medical Genetics, Keio University School of Medicine , Tokyo, Japan
4. Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU) , Tokyo, Japan