Hollingsworth B and D Parkin (2003). “Efficiency and Productivity Change in the English National Health Service: Can Data Envelopment Analysis Provide a Robust and Useful Measure?” J Health Services & Research Policy 8(4): 230-236.
Hollingsworth B and D Parkin (2003). “Efficiency and Productivity Change in the English National Health Service: Can Data Envelopment Analysis Provide a Robust and Useful Measure?” J Health Services & Research Policy 8(4): 230-236.