1. Department of Pathology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
2. Department of Biomedical & Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
3. Immunology Graduate Group, University of Pennsylvania, Philadelphia, PA 19104, USA
4. Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
5. Department of Biochemistry & Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
6. Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
7. Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
8. Department of Computer and Information Science, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
9. Department of Pathology & Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA