1. The Measurement of Hospital Case Mix
2. 44 Young W. W. Incorporating severity of illness and comorbidity in case-mix measurement. Health Care Financing Review, 1984 (annual supplement), 23–31.
3. Medicare Hospital Payment by Diagnosis-Related Groups
4. 12 Health Care Financing Administration, U.S. Department of Health and Human Services. Medicare program: Changes to the inpatient hospital prospective payment system and fiscal year 1986 rates: Final rule. Federal Register, 09 3, 1985, 50, 35700.