1. Department of Cardiac Rehabilitation, National Hospital Organization Kyoto Medical Center , 612-8555 Kyoto , Japan
2. Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense, Instituto de Investigación Sanitaria Gregorio Marañón , 28040 Madrid , Spain
3. Division of Translational Research, National Hospital Organization Kyoto Medical Center , 612-8555 Kyoto , Japan