1. GH and its Related Factors Study Committee and GH Treatment Study Committee, The Foundation for Growth Science in Japan, Tokyo 113-0033, Japan
2. Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
3. Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan
4. Research Study Group on the Hypothalamo-Pituitary Dysfunction, The Ministry of Health, Labor and Welfare, Tokyo 100-8916, Japan