The former Director of NIJ, the Honorable Jeremy Travis; the Director of NIJ's Office of Science and Technology, Mr. David G. Boyd; and NIJ's Forensic Science Program Manager, Richard M. Rau, Ph.D., each share responsi- bility for the success of this project. Credit also goes to R. Gib Parrish, M.D., of CDC, for his support of and com- mitment to the research.