The National Heart Transplantation Study was established in the early 1980s. According to Patricia Roberts Harris, then Secretary of the U.S. Department of Human and Health Services, the study would, "examine, in general, all aspects of heart transplants, including the scientific, social, economic, and ethical issues, and, in particular, the impact of a possible Medicare decision to pay for heart transplants on the Medicare program, Medicare beneficiaries, and providers of health care." The study was led by Dr. Roger W. Evans.
Source: Evans, Roger W. "The economics of heart transplantation." Circulation, Vol. 75, No. 1, 1987, pp. 63-76.