Pain relief in upper abdominal malignancy.
Johnson
Colin D
CD
Davis
Carol L
CL
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
D000701:Analgesics, Opioid