1. Aronowitz, R. A. (2004). When do symptoms become a disease? In A. L. Caplan, J. J. McCartney, & D. A. Sisti eds., Health, Disease, and Illness: Concepts in Medicine, 65-72. Washington, DC: Georgetown University Press.
2. Barkow, J. H., Cosmides, L., & Tooby, J. (1992). The adapted mind: Evolutionary psychology and the generation of culture. Oxford: Oxford University Press.
3. Bolton, D. (2008). What is mental disorder: an essay in philosophy, science, and values. Oxford: Oxford University Press.
4. Boorse, C. (1975). On the Distinction between disease and illness. Philosophy & Public Affairs, 5(1), 49-68.
5. Boorse, C. (1976). What a theory of mental health should be. Journal for the Theory of Social Behaviour, 6(1), 61-84.