Practice variations, chance and quality of care.
Brophy
J M
JM
Joseph
L
L
D002170:Canada / Q000453:epidemiology; D001026:Coronary Artery Bypass / Q000401:mortality*; D003627:Data Interpretation, Statistical; D003953:Diagnosis-Related Groups; D017052:Hospital Mortality / Q000639:trends*; D006801:Humans; D010818:Practice Patterns, Physicians'; D011787:Quality of Health Care; D012107:Research Design; D012306:Risk