%0 Journal Article %A T A Sheldon %A M Borowitz %T Changing the measure of quality in the NHS: from purchasing activity to purchasing protocols. %D 1993 %R 10.1136/qshc.2.3.149 %J Quality in Health Care %P 149-150 %V 2 %N 3 %U https://qualitysafety.bmj.com/content/qhc/2/3/149.full.pdf