1. Center for Promoting Treatment of Intractable Diseases, Iseikai International General Hospital, Osaka 530-0052, Japan
2. Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
3. Department of Bone and Mineral Research, Research Institute, Osaka Women’s and Children’s Hospital, Osaka Prefectural Hospital Organization, Osaka 594-1101, Japan