H. L. Humphries, PhD, B. K. Conrad, PhD, C. K. Giefer, PhD, APRN, A. L. Hite, DNP, APRN, and K. J. Bishop, BA, “Re-Framing the Gift of Life: An Examination of Altruism, Social Distance, and Material Incentives as Factors in Non-Directed Kidney Donor Motivation Among Nurses”, JNSW, vol. 38, no. 2, pp. 36–43, Jan. 2015.