%0 Journal Article %A Richard Baker %T Managing quality in primary health care: the need for valid information about performance %D 2000 %R 10.1136/qhc.9.2.83 %J Quality in Health Care %P 83-83 %V 9 %N 2 %U https://qualitysafety.bmj.com/content/qhc/9/2/83.full.pdf