1. Department of Pathology, Weill Medical College of Cornell University, New York, New York 10021
2. Cornell–Rockefeller University–Sloan-Kettering Institute Tri-Institutional MD/PhD Program, Weill Medical College of Cornell University, New York, New York 10021
3. Human Genome Sciences, Rockville, Maryland 20850
4. Department of Microbiology and Immunology, Weill Medical College of Cornell University, New York, New York 10021