1. Clinical Research Support Center; Tokyo Metropolitan Children's Medical Center; Tokyo Japan
2. Department of Pediatric Cardiology; Tokyo Metropolitan Children's Medical Center; Tokyo Japan
3. Department of Pediatrics; Saku Central Hospital; Nagano Japan
4. Department of Infectious Diseases; Tokyo Metropolitan Children's Medical Center; Tokyo Japan
5. Department of Pediatrics; Tokyo Metropolitan Bokutoh Hospital; Tokyo Japan
6. Department of Pediatrics; Tokyo Metropolitan Ohtsuka Hospital; Tokyo Japan
7. Department of Pediatrics; Tokyo Metropolitan Health and Medical Treatment Corporation; Tama-Hokubu Medical Center; Tokyo Japan
8. Department of General Pediatrics; Tokyo Metropolitan Children's Medical Center; Tokyo Japan
9. Department of Nephrology; Tokyo Metropolitan Children's Medical Center; Tokyo Japan
10. Division of Nephrology and Rheumatology; National Center for Child Health and Development; Tokyo Japan
11. Department of Endocrinology and Metabolism; Tokyo Metropolitan Children's Medical Center; Tokyo Japan