1. Department of Materials Science and Engineering, University of Texas at Arlington, Arlington, TX 76019, USA
2. Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
3. Department of Mechanical Engineering, The College of New Jersey, Ewing, NJ 08618, USA
4. Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA