1. Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA.
2. Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA.
3. Division of Oral Biology and Medicine and the Jane and Jerry Weintraub Center for Reconstructive Biotechnology, School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA.
4. Department of Mechanical Engineering, Henry Samueli School of Engineering and Applied Science, University of California, Los Angeles, Los Angeles, CA 90095, USA.
5. Department of Bioengineering, Henry Samueli School of Engineering and Applied Science, University of California, Los Angeles, Los Angeles, CA 90095, USA.
6. Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA 90095, USA.
7. California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA.