1. Committee for Pro-Life Activities, National Conference of Catholic Bishops, “Nutrition and Hydration: Moral and Pastoral Reflections,” Origins, vol. 21, no. 44 (April 9, 1992).
2. Pontifical Council on Health Affairs (Cor Unum), Questions of Ethics Regarding the Fatally Ill and the Dying (Vatican Press, 1981): 8–9.