Institution: | 1. Cardiovascular Center, Showa University Northern Yokohama Hospital, , Yokohama, Japan;2. Renal Center, Japanese Red Cross Kumamoto Hospital, , Kumamoto, Japan;3. Children's Medical Center, Showa University Northern Yokohama Hospital, , Yokohama, Japan;4. Department of Pediatrics, University of Yamanashi Hospital, , Yamanashi, Japan |