1. Boorse, C. 1977. Health as a theoretical concept. Philosophy of Science 44(4): 542–573.
2. Boorse, C. 1997. A rebuttal on health. In What is Disease?, ed. J.M. Humber, and R.F. Almeder, 3–134. Totowa, New Jersey: Humana Press.
3. Bowling, A. 2007. Honour your father and mother: ageism and medicine. British Journal of General Practice 57(538): 347–348.
4. Bray, G.A. 2003. Obesity is a chronic, relapsing neurochemical disease. International Journal of Obesity. 28(1): 34–38.
5. Caplan, A.L. 2004. The “Unnaturalness” of Ageing—Give Me Reason to Live! In Health, disease and illness: Concepts in medicine, ed. A.L. Caplan, J.J. McCartney, and D.A. Sisti, 117–127. Washington: Georgetown University Press.