TY  - RPRT
TI  - Regional variation in medical systems data: influences on upcoding.
AU  - Daniel P Lorence
AU  - Amanda Spink
PY  - 2002
DO  - 10.1023/a:1016405214914
UR  - https://pubmed.ncbi.nlm.nih.gov/12182203/
ID  - 12182203
ER  -