Takumi Yamada1, Harish Doppalapudi2, G Neal Kay2. 1. Division of Cardiovascular Disease, University of Alabama at Birmingham, FOT 930A, 510 20th Street South, 1530 3rd AVE S, Birmingham, AL 35294-0019, USA takumi-y@fb4.so-net.ne.jp. 2. Division of Cardiovascular Disease, University of Alabama at Birmingham, FOT 930A, 510 20th Street South, 1530 3rd AVE S, Birmingham, AL 35294-0019, USA.