title: Power error.
authors.forename: M
authors.initials: M
authors.lastname: Weinberger
authors.forename: S L
authors.initials: SL
authors.lastname: Bernstein
mesh_terms: D015746:Abdominal Pain / Q000188:drug therapy* / Q000209:etiology; D000701:Analgesics, Opioid / Q000627:therapeutic use*; D003951:Diagnostic Errors; D006801:Humans; D009020:Morphine / Q000627:therapeutic use*; D013223:Statistics as Topic
chemical_list: D000701:Analgesics, Opioid; D009020:Morphine