title: Anesthesia risk factors not proven by case-control study.
authors.forename: Kenneth A
authors.initials: KA
authors.lastname: Schmidt
mesh_terms: D000758:Anesthesia / Q000009:adverse effects* / Q000401:mortality; D016022:Case-Control Studies; D006801:Humans; D010102:Oxygen Inhalation Therapy; D012107:Research Design; D012307:Risk Factors