TY  - RPRT
TI  - CUSUM: a tool for early feedback about performance?
AU  - Winston R Chang
AU  - Ian P McLean
PY  - 2006
DO  - 10.1186/1471-2288-6-8
UR  - https://pubmed.ncbi.nlm.nih.gov/16509997/
ID  - 16509997
ER  -