B. Steinbeck

A closer look at all-patient refined DRGs.

N. Goldfield, R. Averill, Richard F Averill, 2002, Journal of AHIMA.

The Evolution of Casemix Measurement Using Diagnosis Related Groups ( DRGs )

James C. Vertrees, Richard F. Averill, Robert L. Mullin, 2022 .

Development of the All Patient Refined DRGs ( APR-DRGs )

N. Goldfield, R. Averill, J. Muldoon, 2022 .

Development of the ICD-10 procedure coding system (ICD-10-PCS).

R F Averill, R L Mullin, B A Steinbeck, 1998, Topics in health information management.