1. The use of electronic computers in medical data processing;Ledley;IRE Trans in Med Electronics,1960
2. The Growth of Medical Information Systems in the United States;Lindberg,1979
3. Clinical Information Systems;Blum,1986
4. A physician looks at DRGs;Lang;West J Med,1984
5. Diagnosis-Related Groups (DRGs) and the Prospective Payment System: A Guide for Physicians;Sammons,1984