1. Cell and Molecular Biology Program, Perelman School of Medicine University of Pennsylvania Philadelphia PA USA
2. Medical Scientist Training Program, Perelman School of Medicine University of Pennsylvania Philadelphia PA USA
3. College of Arts and Sciences University of Pennsylvania Philadelphia PA USA
4. Division of Protective Immunity Children's Hospital of Philadelphia Philadelphia PA USA
5. Cell Pathology Division Children's Hospital of Philadelphia Philadelphia PA USA
6. Department of Pathology and Laboratory Medicine University of Pennsylvania Philadelphia PA USA