1. Curriculum in Bioinformatics and Computational Biology, University of North Carolina, Chapel Hill, NC 27599, USA
2. Department of Pharmacology, University of North Carolina, Chapel Hill, NC 27599, USA
3. Computer Science, University of North Carolina, Chapel Hill, NC 27599, USA
4. Joint Department of Biomedical Engineering at UNC-Chapel Hill and NC State University, Chapel Hill, NC 27599, USA