1. Department of Biomedical Engineering, Florida International University, EAS 2610, Miami, FL 33174
2. College of Engineering, University of Texas at El Paso, 500 West University Avenue, Engineering Building M-305, El Paso, TX 79968
3. Department of Biomedical Engineering, Texas A&M University, 336D Zachry Engineering Center, 3120 TAMU, College Station, TX 77843