Corresponding author:
Yukio Abe, MD, PhD, Department of Cardiology, Osaka City General Hospital,
2-13-22 Miyakojima-hondori, Miyakojima-ku, Osaka, Japan 534-0021
E-mail: abeyukio@aol.com Phone: (+81)-6-6929-1221 Fax: (81)-6-6929-1090