title: As-needed morphine: yes, but at what dose and at what interval?
authors.affiliation: Department of Medicine, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA.
authors.forename: Matthew
authors.initials: M
authors.lastname: Ryan
authors.forename: Timothy J
authors.initials: TJ
authors.lastname: Moynihan
authors.forename: Charles L
authors.initials: CL
authors.lastname: Loprinzi
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D004305:Dose-Response Relationship, Drug; D005260:Female; D006801:Humans; D009020:Morphine / Q000627:therapeutic use*; D009369:Neoplasms / Q000150:complications*; D010146:Pain / Q000188:drug therapy*; D011930:Reaction Time / Q000187:drug effects*
chemical_list: D000701:Analgesics, Opioid; D009020:Morphine