1. Cardiovascular
Research Institute, Yokohama City University, Graduate School of Medicine, Yokohama 236-0004, Japan
2. Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
3. Norwegian University of Science and Technology, Department of Materials Science Engineering, NO-7491 Trondheim, Norway