@BOOK{NAP11720, author = "National Research Council", title = "Letter Report on the Threat Agent Detection Response System Database", doi = "10.17226/11720", url = "https://nap.nationalacademies.org/catalog/11720/letter-report-on-the-threat-agent-detection-response-system-database", year = 2006, publisher = "The National Academies Press", address = "Washington, DC" }