Harvard University - Department of Immunology, University of Colorado Anschutz Medical Campus - Department of Immunology and Microbiology, Harvard University - Department of Immunology, Harvard University - Department of Immunology, The University of Western Ontario - Department of Physiology and Pharmacology, University of Texas at Dallas - Department of Neuroscience and Center for Advanced Pain Studies, University of Texas at Dallas - Department of Neuroscience and Center for Advanced Pain Studies, Harvard University - Department of Neurology, University of Toulouse 3, Paul Sabatier University - INSERM, University of Toulouse 3, Paul Sabatier University - INSERM, Harvard University - Department of Immunology, University of California, San Diego (UCSD) - Department of Dermatology, Harvard University - Department of Immunology, Harvard University - Department of Immunology, Harvard University - Department of Neurology, University of California, San Diego (UCSD) - Department of Dermatology, University of Toulouse 3, Paul Sabatier University - INSERM, University of Texas at Dallas - Department of Neuroscience and Center for Advanced Pain Studies, The University of Western Ontario - Department of Physiology and Pharmacology, University of Colorado Anschutz Medical Campus - Department of Immunology and Microbiology, Harvard University - Department of Immunology and Independent