1. Department of Mechanical and Materials Engineering, MAIDROC Laboratory; Florida International University; Miami FL 33174
2. Department of Computer Sciences, Computational Visualization Center, Institute of Computational Engineering and Sciences; University of Texas at Austin; Austin TX 78712
3. Departments of Anesthesiology and Physiology, Cardiovascular Research Center; Medical College of Wisconsin, Research Service, Veterans Affairs Medical Center; Milwaukee WI 53295
4. Department of Surgery, Division of Cardiothoracic Surgery, School of Medicine; Wayne State University; Detroit MI 48202