1. From the Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta (J.F.E., N.V.-R., S.K., L.G., W.R.T., A.P.Y., H.J.)
2. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta (M.T.S., A.P.Y.)
3. Department of Biochemistry, Faculty of Medicine, University of Toronto, Ontario, Canada (M.O.)
4. Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA (W.R.T., H.J.)
5. Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta (R.M.N.).