1. Institute of Biomedical Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan;
2. Department of Electronics and Electrical Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
3. College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
4. Department of Radiation Oncology, Cathay General Hospital, Taipei, Taiwan
5. School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
6. Center for Emergent Functional Matter of Science, National Yang Ming Chiao Tung University, Hsinchu, Taiwan