TY  - RPRT
TI  - Case-mix adjustment and efficiency measurement.
AU  - Magnus A Björkgren
AU  - Brant E Fries
AU  - Unto Häkkinen
AU  - Mats Brommels
PY  - 2004
DO  - 10.1080/14034940410028235
UR  - https://pubmed.ncbi.nlm.nih.gov/15762032/
ID  - 15762032
ER  -