1. Joint
Graduate Program in Biomedical Engineering, University of Texas at San Antonio and the University of Texas Health Science Center at San Antonio, San Antonio, Texas 78249, United States
2. Department
of Biomedical Engineering, University of Texas at San Antonio, San Antonio, Texas 78249, United States
3. Department
of Obstetrics and Gynecology, University of Texas Health Science Center at San Antonio San Antonio, Texas78229, United States
4. RANN Research Corporation, San Antonio, Texas 78250, United States