1. Department of Infectious Diseases, St. Jude Children’s Hospital, Memphis, Tennessee, USA
2. Department of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
3. Department of Oncology, St. Jude Children’s Hospital, Memphis, Tennessee, USA
4. Department of Pathology, St. Jude Children’s Hospital, Memphis, Tennessee, USA
5. Department of Chemical Biology and Therapeutics, St. Jude Children’s Hospital, Memphis, Tennessee, USA
6. Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee, USA