Dealing with medical practice variations: a proposal for action.
D000368:Aged; D001291:Attitude of Health Personnel; D002391:Catchment Area, Health; D003363:Cost Control; D003953:Diagnosis-Related Groups; D005260:Female; D005377:Financial Management, Hospital; D006296:Health Services / Q000706:statistics & numerical data*; D006300:Health Services Misuse; D006801:Humans; D008297:Male; D008875:Middle Aged; D010343:Patient Admission; D010820:Physicians; D014481:United States