Affiliation: | (1) Department of Geriatric Medicine, Osaka University Medical School, 2-2 Yamadaoka, Suita, Osaka 565, Japan;(2) Department of Human Genetics, Nagasaki University School of Medicine, 1-12-4 Sakamoto-Machi, Nagasaki 852, Japan;(3) Biotechnology Research Laboratories, Takara Shuzo Co., Ltd., 3-4-1 Seta, 520-21 Ohtsu, Shiga, Japan |