1. Department of Cardiovascular Pharmacotherapy and Toxicology; Osaka University of Pharmaceutical Sciences; 4-20-1 Nasahara Takatsuki, Osaka 569-1094 Japan
2. Department of Bio-Analytical Chemistry; Osaka University of Pharmaceutical Sciences; Takatsuki 569-1094 Japan
3. Education and Research Center for Fundamental Pharmaceutical Sciences; Osaka University of Pharmaceutical Sciences; 4-20-1 Nasahara Takatsuki, Osaka 569-1094 Japan
4. Shirasagi Hospital; 7-11-23 Kumata Higashisumiyosi-ku, Osaka 546-0002 Japan