Measuring physicians' productivity.
D003695:Delivery of Health Care / Q000191:economics*; D004526:Efficiency; D005260:Female; D006296:Health Services / Q000592:standards; D006801:Humans; D007044:Hysterectomy / Q000592:standards; D007349:Insurance, Health, Reimbursement / Q000331:legislation & jurisprudence; D010820:Physicians; D012015:Reference Standards; D013514:Surgical Procedures, Operative / Q000191:economics*; D014481:United States; D014483:United States Dept. of Health and Human Services