Updated analysis of unnecessary inpatient procedures.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D017048:Health Care Costs / Q000592:standards; D006300:Health Services Misuse / Q000191:economics / Q000706:statistics & numerical data*; D006801:Humans; D007223:Infant; D007297:Inpatients / Q000706:statistics & numerical data*; D008875:Middle Aged; D009518:New York; D014589:Utah; D014861:Washington