RT Journal Article SR Electronic T1 Postoperative pain: Meeting new expectations JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 441 OP 442 DO 10.3949/ccjm.80a.13022 VO 80 IS 7 A1 Steven R. Insler A1 Michael S. O’connor YR 2013 UL http://www.ccjm.org/content/80/7/441.abstract AB