1. Young F. E. Statement before the Subcommittee on Health and Long-Term Care, Select Committee on Aging, U.S. House of Representatives, 07 19, 1985.
2. Will Payment Based on Diagnosis-Related Groups Control Hospital Costs?
3. U.S. National Institutes of Health. Diagnostic ultrasound imaging in pregnancy. NIH Consensus Development Conference, Consensus Statement, vol. 5, no. 1, NIH Pub. No. 84–667, 1984.