Sinatra, Raymond S Intravenous acetaminophen for pain after major orthopedic surgery: an expanded analysis. [electronic resource] - Pain practice : the official journal of World Institute of Pain Jun 2012 - 357-65 p. digital Publication Type: Journal Article; Randomized Controlled Trial ISSN: 1533-2500 Standard No.: 10.1111/j.1533-2500.2011.00514.x doi Subjects--Topical Terms: Acetaminophen--administration & dosageAdultAgedAnalgesics, Non-Narcotic--administration & dosageFemaleHumansMaleMiddle AgedOrthopedic Procedures--adverse effectsPain, Postoperative--drug therapyPlacebosProspective StudiesSingle-Blind Method