title: Perioperative comparative effectiveness research: an opportunity calling.
authors.forename: Sachin
authors.initials: S
authors.lastname: Kheterpal
mesh_terms: D057171:American Recovery and Reinvestment Act; D000758:Anesthesia; D019645:Arthroplasty, Replacement, Knee; D009316:National Institutes of Health (U.S.); D010149:Postoperative Pain / Q000188:drug therapy / Q000517:prevention & control; D011640:Public Policy; D012106:Research; D016896:Treatment Outcome; D014481:United States