1. Centre for Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital; Harvard Medical School; Cambridge MA USA
2. Harvard-MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology; Cambridge MA USA
3. Department of Maxillofacial Biomedical Engineering and Institute of Oral Biology; School of Dentistry, Kyung Hee University; Seoul 130-701 Republic of Korea
4. Department of Bioengineering; University of Pittsburgh; PA USA
5. Department of Information Technology and Electrical Engineering; Swiss Federal Institute of Technology Zurich (ETH); Switzerland
6. Wyss Institute for Biologically Inspired Engineering; Harvard University; Boston MA USA