Kitasato Institute for Life Sciences and School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan; Cardiovascular Research Laboratory, Korea Research Institute of Bioscience and Biotechnology, Taejon 305-333, Korea; and The Kitasato Institute, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8642, Japan(2002-11-04時点)