1. Departments of Mathematics and Applied Physical Science, University of North Carolina—Chapel Hill, Chapel Hill, North Carolina 27599, United States
2. Mathematics Department, Tulane University, New Orleans, Louisiana 70118, United States
3. Department of Biophysics, Johns Hopkins University, Baltimore, Maryland 21218, United States
4. UNC/NCSU Joint Department of Biomedical
Engineering, University of North Carolina—Chapel Hill, Chapel Hill, North Carolina 27599, United States
5. Division of Molecular Pharmaceutics, Eshelman School
of Pharmacy, University of North Carolina—Chapel Hill, Chapel Hill, North Carolina 27599, United States
6. Department of Microbiology & Immunology, University of North Carolina—Chapel Hill, Chapel Hill, North Carolina 27599, United States