@BOOK{NAP20602, author = "National Research Council", title = "Defining the Laboratory Animal: IV Symposium, International Committee on Laboratory Animals", doi = "10.17226/20602", url = "https://nap.nationalacademies.org/catalog/20602/defining-the-laboratory-animal-iv-symposium-international-committee-on-laboratory", year = 1971, publisher = "The National Academies Press", address = "Washington, DC" }