1. Department of Pediatrics; Kawaguchi Municipal Medical Center; Kawaguchi Japan
2. Department of Pediatrics and Developmental Biology; Tokyo Medical and Dental University; Tokyo Japan
3. Department of Molecular Endocrinology and Metabolism; Tokyo Medical and Dental University; Tokyo Japan
4. Tokyo Women's Medical University Institute for Integrated Medical Sciences; Tokyo Japan
5. Faculty of Medicine; Division of Sports Science; University of Tsukuba; Tsukuba Japan