1. Department of Mechanical Engineering, Tufts University, Medford, Massachusetts.
2. Department of Mechanical Engineering, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland.
3. Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York.
4. Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts.
5. Department of Biology, Tufts University, Medford, Massachusetts.