1. Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, No. 43, Keelung Rd, Sec. 4, Da'an Dist., Taipei City 10607, Taiwan
2. Adjunct Appointment to the Departmnet of Biomedical Engineering, National Defense Medical Centre, Taipei 11490, Taiwan
3. Department of Obstetric and Gynecology, Tri-Service General Hospital, National Defense Medical Centre, Taiwan