W R Chang
- The future of hip arthroplasty: a trainee's perspectiveW R Chang
Surgeon 4:91-2. 2006
- CUSUM: a tool for early feedback about performance?Winston R Chang
Department of Trauma and Orthopaedics, Dumfries and Galloway Royal Infirmary, Dumfries, DG1 4AP, UK
BMC Med Res Methodol 6:8. 2006..They provide rapid analysis and identification of trends in a series of data. This study highlights use of these techniques as an early performance indicator of a clinical procedure before its implementation...