1. Department of Medicine, Section of Infectious Diseases, Boston University School of Medicine, Boston, Massachusetts, USA
2. Department of Immunology, Tufts University School of Medicine, Boston, Massachusetts, USA
3. Department of Periodontics, School of Dentistry, University of Washington, Seattle, Washington, USA
4. Graduate Program in Immunology, Graduate School of Biomedical Sciences, Tufts University, Boston, Massachusetts, USA
5. Graduate Program in Molecular Biology and Microbiology, Graduate School of Biomedical Sciences, Tufts University, Boston, Massachusetts, USA