title: Pain relief in upper abdominal malignancy.
authors.forename: Colin D
authors.initials: CD
authors.lastname: Johnson
authors.forename: Carol L
authors.initials: CL
authors.lastname: Davis
mesh_terms: D000008:Abdominal Neoplasms / Q000150:complications*; D000701:Analgesics, Opioid / Q000009:adverse effects / Q000627:therapeutic use*; D006801:Humans; D010146:Pain / Q000188:drug therapy* / Q000209:etiology / Q000601:surgery
chemical_list: D000701:Analgesics, Opioid