1. Department of Cardiology, Chi Mei Medical Center, Tainan, Taiwan
2. Department of Computer Science and Information Engineering, National Taipei University, Taipei, Taiwan
3. Institute of Imaging and Biomedical Photonics, National Yang Ming Chiao Tung University, Tainan, Taiwan
4. System Design and Integration Department, Industrial Technology Research Institute, Hsinchu, Taiwan
5. School of Instrument Science and Engineering, Southeast University, Nanjing, China
6. Department of Statistics, National Taipei University, New Taipei City, Taiwan