Rollin, Bernard. The Unheeded Cry: Animal Consciousness, Animal Pain, and Science. New York: Oxford University Press, 1989, pp. xii, 117-118, cited in Carbone, Larry. '"What Animal Want: Expertise and Advocacy in Laboratory Animal Welfare Policy. Oxford University Press, 2004, p. 150; and Rollin, Bernard. "Animal research: a moral science. Talking Point on the use of animals in scientific research", EMBO reports 8, 6, 2007, pp. 521–525.
