title: Adding to the health services research toolbox.
authors.forename: Robert K
authors.initials: RK
authors.lastname: Kanter
mesh_terms: D002648:Child; D006302:Health Services Research; D006760:Hospitalization / Q000191:economics / Q000706:statistics & numerical data*; D006801:Humans; D038801:International Classification of Diseases; D009102:Multiple Organ Failure / Q000175:diagnosis* / Q000191:economics* / Q000453:epidemiology; D017063:Outcome Assessment, Health Care / Q000191:economics / Q000379:methods*; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D014481:United States / Q000453:epidemiology