** Reprinted in Arthur Caplan, H. Tristram Engelhardt, Jr., and James McCartney, eds, "Concepts of Health and Disease in Medicine: Interdisciplinary Perspectives" (Boston: Addison-Wesley, 1980).
* — reprinted in Health, Disease, and Illness: Concepts in Medicine edited by Arthur L Caplan, James J McCartney, Dominic A Sisti.